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PAGEVPAGE摘要本研究聚焦芳樟醇對(duì)寄生曲霉生長(zhǎng)及AFB1合成的抑制作用,通過利用不同濃度芳樟醇處理寄生曲霉,測(cè)定菌落直徑、菌絲干重、丙二醛含量、麥角固醇含量、能量代謝和黃曲霉毒素生成量等指標(biāo),來研究芳樟醇對(duì)寄生曲霉的抑制效果。研究結(jié)果顯示,芳樟醇在固體培養(yǎng)基中對(duì)寄生曲霉生長(zhǎng)的最小抑菌濃度(MIC)為0.571μL/mL。在最小抑菌濃度下,芳樟醇對(duì)對(duì)寄生曲霉菌落直徑和菌絲干重的抑制率均達(dá)95%以上。液體培養(yǎng)基的最小抑菌濃度沒有體現(xiàn),后面但是以液體培養(yǎng)基最小抑菌濃度(1.2)來做實(shí)驗(yàn)的隨著芳樟醇濃度的增加,寄生曲霉細(xì)胞內(nèi)丙二醛含量沒有出現(xiàn)顯著性變化,細(xì)胞內(nèi)容物含量增加,而麥角固醇含量、琥珀酸脫氫酶(SDH)活性、蘋果酸脫氫酶(MDH)活性、ATP含量及其ATP酶活性顯著下降。綜上所述,芳樟醇顯著抑制寄生曲霉生長(zhǎng)及產(chǎn)毒,且抑制效果與濃度呈正相關(guān)。其作用機(jī)制可能是破壞細(xì)胞膜結(jié)構(gòu),致使丙二醛含量上升、麥角固醇含量下降;干擾代謝通路,減少細(xì)胞內(nèi)可溶性蛋白含量;增強(qiáng)抗氧化能力,降低黃曲霉毒素生成量。研究芳樟醇對(duì)寄生曲霉的抑制效果可以為控制食品與糧食中的黃曲霉毒素污染提供了新思路,對(duì)推動(dòng)休閑食品行業(yè)發(fā)展具有重要意義,為天然防霉抑毒劑開發(fā)提供理論支撐。關(guān)鍵詞:芳樟醇;寄生曲霉;黃曲霉毒素;抑制作用;作用機(jī)制AbstractThisstudyfocusesontheinhibitoryeffectsoflinaloolonthegrowthofAspergillusparasiticusandAFB1synthesis.BytreatingA.parasiticuswithdifferentconcentrationsoflinalool,parameterssuchascolonydiameter,mycelialdryweight,malondialdehydecontent,ergosterolcontent,energymetabolism,andaflatoxinproductionweremeasuredtoinvestigatetheinhibitoryefficacyoflinaloolonA.parasiticus.Theresultsdemonstratedthattheminimuminhibitoryconcentration(MIC)oflinaloolagainstA.parasiticusgrowthinsolidmediumwas0.571μLmL-1.AttheMIC,linaloolachievedover95%inhibitionratesonbothcolonydiameterandmycelialdryweightofA.parasiticus.Withincreasinglinaloolconcentrations,nosignificantchangeswereobservedinintracellularmalondialdehydecontent,whilecellularsolutecontentincreased.Incontrast,ergosterolcontent,succinatedehydrogenase(SDH)activity,malatedehydrogenase(MDH)activity,ATPcontent,andATPaseactivitysignificantlydeclined.Insummary,linaloolmarkedlyinhibitedthegrowthandtoxinproductionofA.parasiticus,withtheinhibitoryeffectshowingapositivecorrelationwithconcentration.Theunderlyingmechanismmayinvolvedisruptionofcellmembranestructure,leadingtoincreasedmalondialdehydecontentanddecreasedergosterollevels;interferencewithmetabolicpathways,reducingintracellularsolubleproteincontent;andenhancementofantioxidantcapacity,therebyloweringaflatoxinproduction.InvestigatingtheinhibitoryeffectsoflinaloolonA.parasiticusprovidesnovelinsightsforcontrollingaflatoxincontaminationinfoodandgrain,holdssignificantimplicationsforadvancingthesnackfoodindustry,andofferstheoreticalsupportfordevelopingnaturalantifungalandantitoxinagents.Keywords:linalool;Aspergillusparasiticus;Aflatoxins;Inhibitioneffect;Actionmechanism

目錄17330摘要 I19629Abstract II250371引言 1317821.1芳樟醇概述 187321.2寄生曲霉及黃曲霉毒素的危害 127321.3研究目的與意義 3218482材料與方法 4279502.1實(shí)驗(yàn)材料 4284932.2實(shí)驗(yàn)器材 4144632.3實(shí)驗(yàn)方法 5104752.3.1寄生曲霉孢子懸浮液的制備 59092.3.2芳樟醇溶液的制備 5382.3.3芳樟醇對(duì)寄生曲霉菌落直徑抑制作用的測(cè)定 5297792.3.4芳樟醇對(duì)寄生曲霉菌絲干重的影響 5275362.3.5芳樟醇對(duì)丙二醛含量的影響 654972.3.6芳樟醇對(duì)內(nèi)容物含量的影響 620682.3.7芳樟醇對(duì)麥角固醇含量的影響 6168182.3.8芳樟醇對(duì)寄生曲霉細(xì)胞能量代謝的影響 6310362.3.9芳樟醇對(duì)AFB1合成抑制率的影響 770062.4數(shù)據(jù)處理 7145643結(jié)果與分析 7312333.1芳樟醇對(duì)寄生曲霉菌落直徑的影響 7146663.2芳樟醇對(duì)寄生曲霉菌絲干重的影響 9175363.3芳樟醇對(duì)寄生曲霉丙二醛含量的影響 1053373.4芳樟醇對(duì)內(nèi)容物含量的影響 1198053.5芳樟醇對(duì)寄生曲霉麥角固醇含量的影響 1384883.6芳樟醇對(duì)寄生曲霉產(chǎn)黃曲霉毒素的影響 14160993.7芳樟醇對(duì)寄生曲霉細(xì)胞能量代謝的影響 1599804結(jié)論 1797995展望 1720305參考文獻(xiàn) 19PAGE81引言1.1芳樟醇概述芳樟醇(Linalool)是一種廣泛存在于多種植物中的天然單萜烯醇類化合物,其化學(xué)式為C10H18O,分子結(jié)構(gòu)中包含不飽和雙鍵和羥基ADDINZOTERO_ITEMCSL_CITATION{"citationID":"lmfELNic","properties":{"formattedCitation":"\\super[1]\\nosupersub{}","plainCitation":"[1]","noteIndex":0},"citationItems":[{"id":8662,"uris":["/users/local/yHrIFQFb/items/TAEX39V8"],"itemData":{"id":8662,"type":"article-journal","abstract":"以芳香型牡丹品種‘海黃’(Paeonia×lemoinei‘HighNoon’)為材料,根據(jù)轉(zhuǎn)錄組測(cè)序所得片段,克隆得到PsTPS14基因,該結(jié)構(gòu)基因的完整CDS序列長(zhǎng)903bp,共編碼300個(gè)氨基酸。氨基酸序列分析發(fā)現(xiàn)該蛋白具有較高的保守性,有1個(gè)保守結(jié)構(gòu)域Terpene_cyclase_plant_C1。PsTPS14在‘海黃’牡丹半開期花瓣中表達(dá)量最高,與其花香揮發(fā)物釋放規(guī)律一致。亞細(xì)胞定位分析表明PsTPS14主要定位于葉綠體中。利用瞬時(shí)表達(dá)方法將PsTPS14過表達(dá)載體注射到煙草葉片和淡香型牡丹‘鳳丹’切花花瓣中,通過GC–MS方法可檢測(cè)到煙草葉片和‘鳳丹’花瓣中芳樟醇的釋放,同時(shí)PsTPS14高表達(dá),且芳樟醇合酶含量及其活性明顯升高。研究結(jié)果表明PsTPS14在植物體內(nèi)調(diào)控芳樟醇的合成。","container-title":"園藝學(xué)報(bào)","DOI":"10.16420/j.issn.0513-353x.2023-0383","issue":"6","journalAbbreviation":"園藝學(xué)報(bào)","language":"zh","note":"foundation:教育部產(chǎn)學(xué)合作協(xié)同育人項(xiàng)目(202101280004);\ndownload:302\nalbum:農(nóng)業(yè)科技\nCLC:S685.11\ndbcode:CJFQ\ndbname:CJFDLAST2024\nfilename:YYXB202406019","page":"1273-1283","source":"CNKI","title":"‘海黃’牡丹芳樟醇合酶基因PsTPS14的克隆及功能驗(yàn)證","title-short":"1","volume":"51","author":[{"literal":"王佩云"},{"literal":"李子昂"},{"literal":"白楊"},{"literal":"楊萍"},{"literal":"尹承芃"},{"literal":"李傳榮"},{"literal":"張馨文"},{"literal":"宋秀華"}],"issued":{"date-parts":[["2024"]]}}}],"schema":"/citation-style-language/schema/raw/master/csl-citation.json"}[1]。這種化合物具有較高的揮發(fā)性,尤其在薰衣草、薄荷、香橙、香草等植物中含量尤為豐富,成為這些植物的主要香氣成分ADDINZOTERO_ITEMCSL_CITATION{"citationID":"y0hOf405","properties":{"formattedCitation":"\\super[2]\\nosupersub{}","plainCitation":"[2]","noteIndex":0},"citationItems":[{"id":8664,"uris":["/users/local/yHrIFQFb/items/X8HWHGYK"],"itemData":{"id":8664,"type":"article-journal","abstract":"【目的】為完善茶葉中香氣物質(zhì)的檢測(cè)方法,針對(duì)芳樟醇與alpha-紫羅蘭酮兩種香氣物質(zhì)建立氣相色譜-質(zhì)譜聯(lián)用法(GasChromatography-MassSpectrometry,GC-MS)快速同時(shí)檢測(cè)的分析方法,以期為茶葉中香氣物質(zhì)的檢測(cè)提供新思路和參考?!痉椒ā坎枞~樣品經(jīng)乙腈提取后,用QuEChERS凈化管(內(nèi)含PSA200mg、GCB200mg、無水硫酸鈉400mg)凈化茶葉上清液,采用GC-MS選擇離子監(jiān)測(cè)模式進(jìn)行測(cè)定,外標(biāo)法定量?!窘Y(jié)果】芳樟醇和alpha-紫羅蘭酮在5.0~2000.0μg·L<sup>-1</sup>內(nèi)線性良好,線性相關(guān)系數(shù)(R2)均大于0.999;方法的檢出限為分別為0.020mg·kg<sup>-1</sup>和0.004mg·kg<sup>-1</sup>,定量限分別為0.080mg·kg<sup>-1</sup>和0.010mg·kg<sup>-1</sup>。使用該方法在空白茶葉樣品中分別添加3種不同加標(biāo)濃度(5.0、10.0、1000.0μg·L<sup>-1</sup>)的混合標(biāo)準(zhǔn)溶液,測(cè)得平均回收率為88.23%~106.11%,相對(duì)標(biāo)準(zhǔn)偏差(RSD)為1.98%~3.25%(n=6)?!窘Y(jié)論】該方法操作快速便捷,運(yùn)行時(shí)間僅需16.8min,重現(xiàn)性和精確度高、靈敏度好,適用于茶葉中芳樟醇、alpha-紫羅蘭酮的快速檢測(cè),能夠?yàn)橄嚓P(guān)機(jī)構(gòu)對(duì)茶葉中香氣物質(zhì)的檢測(cè)提供技術(shù)支持。","container-title":"茶葉學(xué)報(bào)","DOI":"10.20045/ki.issn.2096-0220.2024.03.005","issue":"3","journalAbbreviation":"茶葉學(xué)報(bào)","language":"zh","note":"download:113\nalbum:農(nóng)業(yè)科技;工程科技Ⅰ輯\nCLC:O657.63;TS272.7\ndbcode:CJFQ\ndbname:CJFDLAST2024\nfilename:CYKJ202403005","page":"57-66","source":"CNKI","title":"QuEChERS-GC-MS法快速檢測(cè)茶葉中的芳樟醇和alpha-紫羅蘭酮","title-short":"1","volume":"65","author":[{"literal":"游佩瓊"}],"issued":{"date-parts":[["2024"]]}}}],"schema":"/citation-style-language/schema/raw/master/csl-citation.json"}[2]。芳樟醇所特有的清新花香和木香氣息,使其在香料和香水制造領(lǐng)域得到了廣泛應(yīng)用。近年來,隨著人們對(duì)天然物質(zhì)研究的不斷深入,芳樟醇在人類生活中的各個(gè)方面展現(xiàn)出了多種有益的作用。在醫(yī)藥與健康領(lǐng)域,芳樟醇的抗菌、抗氧化、抗炎、鎮(zhèn)靜和抗焦慮等功能受到了廣泛關(guān)注ADDINZOTERO_ITEMCSL_CITATION{"citationID":"OPOSDHU4","properties":{"formattedCitation":"\\super[3]\\nosupersub{}","plainCitation":"[3]","noteIndex":0},"citationItems":[{"id":8668,"uris":["/users/local/yHrIFQFb/items/T2QZ2KAX"],"itemData":{"id":8668,"type":"article-journal","abstract":"為明確芳樟醇對(duì)生姜枯萎病菌尖孢鐮刀菌(Fusariumoxysporum)的抑菌效果與作用機(jī)制,以不同質(zhì)量濃度的芳樟醇處理尖孢鐮刀菌,對(duì)尖孢鐮刀菌菌絲體生長(zhǎng)、孢子萌發(fā)和細(xì)胞膜的損傷以及防治效果進(jìn)行系統(tǒng)研究。結(jié)果表明:芳樟醇可顯著抑制尖孢鐮刀菌的菌絲生長(zhǎng),其半數(shù)有效濃度為1.183g/L,最小抑菌濃度(minimalinhibitoryconcentration,MIC)為2.0g/L,抑制效果與芳樟醇質(zhì)量濃度呈劑量效應(yīng)關(guān)系;以芳樟醇MIC處理尖孢鐮刀菌6h,其孢子濃度為(1.43±0.12)×10~4spores/mL,顯著低于對(duì)照組((5.79±0.19)×10~4spores/mL)(P<0.05);MIC芳樟醇處理枯萎病菌尖孢鐮刀菌12h,其孢子萌發(fā)率僅為(5.83±2.16)%,顯著低于對(duì)照組((95.12±3.78)%)(P<0.05)。1/2MIC與MIC芳樟醇處理破壞了細(xì)胞膜的完整性,導(dǎo)致菌絲懸液中相對(duì)電導(dǎo)率、核酸滲漏量顯著增加,菌絲中丙二醛濃度也顯著增加,麥角固醇含量顯著降低,減弱了尖孢鐮刀菌的致病力;MIC芳樟醇處理3d后姜塊上沒有病斑產(chǎn)生,有良好的防治效果。綜上所述,芳樟醇通過抑制生姜枯萎病菌尖孢鐮刀菌菌絲生長(zhǎng)與孢子萌發(fā)、破壞細(xì)胞結(jié)構(gòu)從而影響其正常的生理功能,本研究可為防治生姜枯萎病提供新思路。","container-title":"食品科學(xué)","issue":"6","journalAbbreviation":"食品科學(xué)","language":"zh","note":"foundation:湖北省重點(diǎn)研發(fā)計(jì)劃項(xiàng)目(2022BBA0061;2021BBA096);重慶市農(nóng)委創(chuàng)新團(tuán)隊(duì)重大專項(xiàng)(2021-2023-07);荊州市2022年度科技計(jì)劃項(xiàng)目(2022BB36);重慶英才優(yōu)秀科學(xué)項(xiàng)目(2022CQYC0101514);\ndownload:774\nalbum:工程科技Ⅰ輯;農(nóng)業(yè)科技\nCLC:S436.32\ndbcode:CJFQ\ndbname:CJFDLAST2024\nfilename:SPKX202406010","page":"72-79","source":"CNKI","title":"芳樟醇對(duì)生姜枯萎病菌的抑制作用","title-short":"1","volume":"45","author":[{"literal":"周麗榮"},{"literal":"張玲玲"},{"literal":"熊詩潔"},{"literal":"馬佳偉"},{"literal":"朱永興"},{"literal":"孫沖"},{"literal":"朱學(xué)棟"},{"literal":"劉奕清"}],"issued":{"date-parts":[["2024"]]}}}],"schema":"/citation-style-language/schema/raw/master/csl-citation.json"}[3]。研究表明,芳樟醇對(duì)多種病原菌(如金黃色葡萄球菌、大腸桿菌)和真菌(如尖孢鐮刀菌)具有顯著的抑制作用,其作用機(jī)制包括破壞細(xì)胞膜的完整性、干擾代謝途徑等ADDINZOTERO_ITEMCSL_CITATION{"citationID":"CyNWU9jr","properties":{"formattedCitation":"\\super[4-6]\\nosupersub{}","plainCitation":"[4-6]","noteIndex":0},"citationItems":[{"id":8670,"uris":["/users/local/yHrIFQFb/items/WHUQS8DF"],"itemData":{"id":8670,"type":"article-journal","abstract":"目的探究芳樟醇抗紅色毛癬菌的作用及機(jī)理。方法采用改良CLSIM38-A2法測(cè)定芳樟醇抗紅色毛癬菌的最小抑菌濃度;顯微觀察芳樟醇對(duì)紅色毛癬菌的孢子萌發(fā)、菌絲形態(tài)的影響;電導(dǎo)率法判定芳樟醇對(duì)紅色毛癬菌細(xì)胞膜的作用,并利用紫外分光光度分析芳樟醇對(duì)紅色毛癬菌麥角甾醇合成的影響。透射電鏡觀察芳樟醇作用紅色毛癬菌后其微觀結(jié)構(gòu)的改變。通過構(gòu)建紅色毛癬菌感染豚鼠模型,以評(píng)價(jià)芳樟醇對(duì)皮膚癬病的治療效果。結(jié)果芳樟醇抗紅色毛癬菌的最小抑菌濃度為320μg·mL<sup>-1</sup>;芳樟醇可抑制紅色毛癬菌的孢子萌發(fā)及菌絲的徑向生長(zhǎng)并導(dǎo)致細(xì)胞膜通透性增加以及抑制細(xì)胞膜中麥角甾醇的合成。顯微觀察結(jié)果顯示細(xì)胞壁被降解,表面模糊、細(xì)胞內(nèi)膜皺縮、細(xì)胞內(nèi)容物泄漏。動(dòng)物實(shí)驗(yàn)表明,芳樟醇可明顯控制皮膚癬病的進(jìn)程,改善豚鼠組織損傷程度。結(jié)論芳樟醇具有抑制紅色毛癬菌的活性,通過抑制其孢子萌發(fā)、菌絲生長(zhǎng),以及降解細(xì)胞壁、破壞細(xì)胞膜的完整性和抑制麥角甾醇合成等方式抑制紅色毛癬菌的生長(zhǎng)。","container-title":"中國(guó)真菌學(xué)雜志","issue":"6","journalAbbreviation":"中國(guó)真菌學(xué)雜志","language":"zh","note":"download:523\nalbum:醫(yī)藥衛(wèi)生科技\nCLC:R446.5\ndbcode:CJFQ\ndbname:CJFDLAST2023\nfilename:ZJXZ202206001","page":"441-447","source":"CNKI","title":"芳樟醇體外抗紅色毛癬菌活性及機(jī)理研究","title-short":"1","volume":"17","author":[{"literal":"成福"},{"literal":"張秋寒"},{"literal":"唐曉蓮"},{"literal":"王萬能"}],"issued":{"date-parts":[["2022"]]}}},{"id":8678,"uris":["/users/local/yHrIFQFb/items/IBW6F7EC"],"itemData":{"id":8678,"type":"article-journal","abstract":"食品在生產(chǎn)、運(yùn)輸和貯藏過程中易受致病菌污染而引起食源性疾病。芳樟醇具有抗菌作用,但其作用機(jī)制尚不明確。研究芳樟醇對(duì)莓實(shí)假單胞菌的抑菌活性及作用機(jī)制,可為其作為天然食品防腐劑的開發(fā)提供理論依據(jù)。通過測(cè)定最小抑菌濃度、繪制細(xì)菌生長(zhǎng)曲線評(píng)價(jià)芳樟醇的抑菌活性;通過掃描電子顯微鏡觀察、結(jié)晶紫染色實(shí)驗(yàn)、二乙酸熒光素染色實(shí)驗(yàn)以及測(cè)定電導(dǎo)率、核酸泄漏、呼吸代謝活力和呼吸鏈脫氫酶活性的變化探究芳樟醇的抑菌機(jī)制。結(jié)果表明:芳樟醇對(duì)莓實(shí)假單胞菌具有較強(qiáng)的抑制作用,最小抑菌濃度為1.5mL/L;芳樟醇能破壞莓實(shí)假單胞菌細(xì)胞的結(jié)構(gòu)形態(tài)和細(xì)胞膜的完整性,增加細(xì)胞膜的通透性,導(dǎo)致胞內(nèi)物質(zhì)泄漏、膜外電導(dǎo)率升高;能抑制呼吸代謝活力和呼吸鏈脫氫酶活性,破壞呼吸鏈,導(dǎo)致胞內(nèi)代謝紊亂。研究認(rèn)為,芳樟醇可通過破壞莓實(shí)假單胞菌的細(xì)胞結(jié)構(gòu)和抑制其呼吸代謝而發(fā)揮抑菌作用,有望作為天然防腐劑應(yīng)用于食品的防腐保鮮。","container-title":"食品科學(xué)技術(shù)學(xué)報(bào)","issue":"4","journalAbbreviation":"食品科學(xué)技術(shù)學(xué)報(bào)","language":"zh","note":"foundation:國(guó)家自然科學(xué)基金資助項(xiàng)目(32160591);海南省自然科學(xué)基金資助項(xiàng)目(318MS016);\ndownload:1747\nalbum:工程科技Ⅰ輯\nCLC:TS202.3\ndbcode:CJFQ\ndbname:CJFDLAST2022\nfilename:BQGB202204007","page":"55-63","source":"CNKI","title":"芳樟醇對(duì)莓實(shí)假單胞菌的抑菌活性及機(jī)制","title-short":"1","volume":"40","author":[{"literal":"李遠(yuǎn)頌"},{"literal":"何榮榮"},{"literal":"蔡佳欣"},{"literal":"陳達(dá)"},{"literal":"陳文學(xué)"}],"issued":{"date-parts":[["2022"]]}}},{"id":8686,"uris":["/users/local/yHrIFQFb/items/DJVNS7X3"],"itemData":{"id":8686,"type":"article-journal","abstract":"源于天然植物中的芳樟醇具有抗菌作用,但其對(duì)食源性致病細(xì)菌的作用機(jī)制還不清楚。通過研究芳樟醇處理后大腸桿菌的形態(tài)、細(xì)胞內(nèi)容物和ATP的變化,初步探究芳樟醇對(duì)大腸桿菌的抑菌機(jī)制,結(jié)果表明:芳樟醇對(duì)大腸桿菌有較好的抗菌活性,生長(zhǎng)曲線結(jié)果顯示1×MIC、2×MIC大腸桿菌生長(zhǎng)完全受到抑制。細(xì)胞形態(tài)觀察結(jié)果表明,膜電位下降近85%,胞內(nèi)蛋白相較最初泄露達(dá)到238.64μg/mL,核酸相較最初泄露近81%,ATP含量下降至18.46μmoL/L,表明該抑制作用首先是從細(xì)胞膜開始的,芳樟醇的疏水作用使其聚集在細(xì)胞膜上,影響細(xì)胞膜的結(jié)構(gòu)和功能,使細(xì)胞膜通透性增大,細(xì)胞內(nèi)容物丟失,ATP含量下降,細(xì)胞功能異常,導(dǎo)致細(xì)胞死亡。芳樟醇具有顯著抑菌效果,有望開發(fā)出一種新型天然抗菌劑。","container-title":"現(xiàn)代食品科技","DOI":"10.13982/j.mfst.1673-9078.2020.4.015","issue":"4","journalAbbreviation":"現(xiàn)代食品科技","language":"zh","note":"foundation:國(guó)家自然科學(xué)基金資助項(xiàng)目(31760480);\ndownload:2019\nalbum:工程科技Ⅰ輯;基礎(chǔ)科學(xué)\nCLC:TS201.3\ndbcode:CJFQ\ndbname:CJFDLAST2020\nfilename:GZSP202004016","page":"113-118","source":"CNKI","title":"芳樟醇對(duì)大腸桿菌的抑菌作用機(jī)制","title-short":"1","volume":"36","author":[{"literal":"郭俸鈺"},{"literal":"陳文學(xué)"},{"literal":"陳海明"},{"literal":"云永歡"},{"literal":"陳衛(wèi)軍"},{"literal":"鐘秋平"}],"issued":{"date-parts":[["2020"]]}}}],"schema":"/citation-style-language/schema/raw/master/csl-citation.json"}[4-6]。由于芳樟醇的低毒性特點(diǎn),它常被用于口腔消毒劑、鎮(zhèn)痛藥物及驅(qū)蟲產(chǎn)品(如蚊香),既具備功能性又確保了安全性ADDINZOTERO_ITEMCSL_CITATION{"citationID":"BsPaQWuw","properties":{"formattedCitation":"\\super[7]\\nosupersub{}","plainCitation":"[7]","noteIndex":0},"citationItems":[{"id":8660,"uris":["/users/local/yHrIFQFb/items/XJ7AYWP5"],"itemData":{"id":8660,"type":"article-journal","abstract":"芳樟醇具有良好的抗菌和抗氧化性,但易揮發(fā)且熱穩(wěn)定性差。埃洛石納米管(HNTs)存在特殊中空孔道結(jié)構(gòu)并具有保護(hù)和釋放活性物質(zhì)的功能,常作為納米載體。因此,開展HNTs負(fù)載芳樟醇(LNL)的研究并進(jìn)行抗菌試驗(yàn)。采用真空負(fù)壓法將LNL負(fù)載到3mol/L鹽酸酸化后的埃洛石納米管(AC-HNTs)管腔內(nèi)部,制備出芳樟醇-酸化埃洛石納米管(L-AC-HNTs)新型防霉抗菌劑。以竹制品中常見的大腸桿菌(Escherichiacoli)、金黃色葡萄球菌(Staphylococcusaureus)、黑曲霉菌(Aspergillusniger)、桔青霉菌(Penicilliumoryzae)為目標(biāo)菌種,考察不同添加量L-AC-HNTs的抑菌效果,測(cè)試其熱穩(wěn)定性和緩釋性并進(jìn)行表征分析。結(jié)果表明,添加1.5%(W/V)的L-AC-HNTs對(duì)以上幾種細(xì)菌和霉菌的抑菌效果最佳,抑菌率均達(dá)到了100%。L-AC-HNTs的熱分解速率峰值溫度達(dá)到279.9℃,比純LNL提高了81.5℃,AC-HNTs在50℃下?lián)]發(fā)72h后對(duì)LNL的保留率仍為94.6%,僅損失了3.4%,而純LNL保留率為8%,酸化刻蝕后LNL負(fù)載量從5.0%最高提升至15.6%。L-AC-HNTs具有廣譜抑菌性和熱穩(wěn)定性,為其在竹制品中的應(yīng)用提供參考。","container-title":"復(fù)合材料學(xué)報(bào)","DOI":"10.13801/ki.fhclxb.20240705.003","journalAbbreviation":"復(fù)合材料學(xué)報(bào)","language":"zh","note":"status:advanceonlinepublication\nfoundation:國(guó)家自然科學(xué)基金(32371795);中央引導(dǎo)地方科技發(fā)展資金項(xiàng)目(2023L3044);福建農(nóng)林大學(xué)科技創(chuàng)新專項(xiàng)基金項(xiàng)目(KFB23138);\ndownload:283\nalbum:工程科技Ⅰ輯;農(nóng)業(yè)科技\nCLC:S781.9;TB34\ndbcode:CAPJ\ndbname:CAPJLAST\nfilename:FUHE20240704002","source":"CNKI","title":"埃洛石納米管負(fù)載芳樟醇及其防霉抗菌性能","title-short":"1","URL":"/10.13801/ki.fhclxb.20240705.003","author":[{"literal":"張?jiān)?},{"literal":"甘雯馨"},{"literal":"曾欽志"},{"literal":"趙偉剛"},{"literal":"陳奶榮"},{"literal":"饒久平"}],"accessed":{"date-parts":[["2025",4,28]]},"issued":{"date-parts":[["2024",7,8]]}}}],"schema":"/citation-style-language/schema/raw/master/csl-citation.json"}[7]。在食品行業(yè),芳樟醇的應(yīng)用同樣廣泛。它不僅可以用于果汁飲料、糖果、烘焙食品中,作為天然香料提升食品的風(fēng)味和香氣,還能有效掩蓋加工過程中產(chǎn)生的異味。此外,芳樟醇的抗菌性能有助于延長(zhǎng)食品的保質(zhì)期,抑制某些微生物的生長(zhǎng),因此在天然防腐劑的研發(fā)方面也展現(xiàn)出巨大的潛力ADDINZOTERO_ITEMCSL_CITATION{"citationID":"QRgmZtsD","properties":{"formattedCitation":"\\super[8-10]\\nosupersub{}","plainCitation":"[8-10]","noteIndex":0},"citationItems":[{"id":8682,"uris":["/users/local/yHrIFQFb/items/8TFM3YL9"],"itemData":{"id":8682,"type":"article-journal","abstract":"本研究應(yīng)用高通量測(cè)序技術(shù)分析不同貯藏期三文魚的菌相變化,并分離、純化、鑒定出1株4℃貯藏環(huán)境下三文魚的優(yōu)勢(shì)腐敗菌——莓實(shí)假單胞菌MS02(PseudomonasfragiMS02)。再以分離出的莓實(shí)假單胞菌MS02為靶標(biāo)菌,深入探究芳樟醇對(duì)其抑菌性能及其抑菌機(jī)理。結(jié)果表明:4℃貯藏三文魚的菌相呈現(xiàn)動(dòng)態(tài)變化的趨勢(shì),其中發(fā)光桿菌屬、假單胞菌屬、青枯菌屬和不動(dòng)桿菌屬細(xì)菌在三文魚貯藏中占主要地位。隨著貯藏時(shí)間的延長(zhǎng),假單胞菌屬的相對(duì)豐度逐漸增大,而莓實(shí)假單胞菌是三文魚在貯藏期間增長(zhǎng)速率最快的菌種。以分離鑒定出的莓實(shí)假單胞菌MS02為研究對(duì)象,發(fā)現(xiàn)芳樟醇對(duì)其具有良好的抑菌效果,掃描電子顯微鏡觀察結(jié)果表明芳樟醇能使細(xì)菌細(xì)胞膜產(chǎn)生凹陷褶皺,而電導(dǎo)率、OD<sub>260nm</sub>、二乙酸熒光素?zé)晒鈴?qiáng)度和堿性磷酸酶(alkalinephosphatase,AKP)、鈉鉀ATP酶活力測(cè)定結(jié)果證明芳樟醇能破壞莓實(shí)假單胞菌的細(xì)胞膜和細(xì)胞壁的通透性和完整性,進(jìn)而影響細(xì)菌細(xì)胞正常能量代謝,最終導(dǎo)致菌體死亡。","container-title":"食品科學(xué)","issue":"9","journalAbbreviation":"食品科學(xué)","language":"zh","note":"foundation:“十三五”國(guó)家重點(diǎn)研發(fā)計(jì)劃重點(diǎn)專項(xiàng)(2018YFD0400601;2019YFD0901702);\ndownload:1303\nalbum:工程科技Ⅰ輯\nCLC:TS254.4\ndbcode:CJFQ\ndbname:CJFDLAST2022\nfilename:SPKX202209024","page":"199-206","source":"CNKI","title":"芳樟醇對(duì)三文魚源莓實(shí)假單胞菌的抑菌機(jī)理","title-short":"1","volume":"43","author":[{"literal":"梅佳林"},{"literal":"李婷婷"},{"literal":"張星暉"},{"literal":"勵(lì)建榮"},{"literal":"孟玉瓊"},{"literal":"馬睿"},{"literal":"楊旭"}],"issued":{"date-parts":[["2022"]]}}},{"id":8680,"uris":["/users/local/yHrIFQFb/items/4DMMHXHK"],"itemData":{"id":8680,"type":"article-journal","abstract":"選用天然芳樟醇作為保鮮劑,抑制由近海生嗜冷桿菌L4引起的秘魯魷魚甲醛升高及品質(zhì)劣變。結(jié)果表明,添加芳樟醇的樣品,甲醛、二甲胺和三甲胺含量均顯著低于同期接種L4的樣品(P<0.05),降低倍數(shù)在1.3~12.2倍之間。添加芳樟醇后以上3項(xiàng)指標(biāo)與空白組無顯著差異(P>0.05)。而氧化三甲胺含量高于L4組同期指標(biāo)的1.1~15.9倍。品質(zhì)指標(biāo)顯示同樣的結(jié)果,芳樟醇處理組和空白組的感官品質(zhì)劣變、菌落總數(shù)、硫代巴比妥酸值和pH值顯著低于L4組(P<0.05)。近海生嗜冷桿菌L4能夠促進(jìn)魷魚中甲醛的產(chǎn)生及其品質(zhì)的劣變,而芳樟醇能夠抑制L4引起的魷魚中甲醛的增加,提高魷魚貯藏品質(zhì)和食用安全性。","container-title":"中國(guó)食品學(xué)報(bào)","DOI":"10.16429/j.1009-7848.2021.12.023","issue":"12","journalAbbreviation":"中國(guó)食品學(xué)報(bào)","language":"zh","note":"foundation:國(guó)家重點(diǎn)研發(fā)計(jì)劃項(xiàng)目(2017YFC1600706);\ndownload:352\nalbum:工程科技Ⅰ輯\nCLC:TS254.1\ndbcode:CJFQ\ndbname:CJFDLAST2022\nfilename:ZGSP202112023","page":"214-221","source":"CNKI","title":"芳樟醇抑制嗜冷桿菌引起的秘魯魷魚甲醛升高","title-short":"1","volume":"21","author":[{"literal":"劉雪飛"},{"literal":"馬吾霞"},{"literal":"李穎暢"},{"literal":"李學(xué)鵬"},{"literal":"蔡友瓊"},{"literal":"楊賢慶"},{"literal":"勵(lì)建榮"}],"issued":{"date-parts":[["2021"]]}}},{"id":8684,"uris":["/users/local/yHrIFQFb/items/NTVRD38L"],"itemData":{"id":8684,"type":"thesis","abstract":"本論文應(yīng)用高通量測(cè)序技術(shù)分析不同貯藏時(shí)間三文魚的菌相關(guān)系,并分離、純化、鑒定出一株4℃貯藏三文魚優(yōu)勢(shì)腐敗菌——莓實(shí)假單胞菌MS02(PseudomonasfragiMS02)。隨后采用同軸靜電紡絲工藝制備出芳樟醇/聚己內(nèi)酯(linalool/polycaprolactone,LL/PCL)抗菌膜并對(duì)其理化性質(zhì)進(jìn)行表征,再以分離出的莓實(shí)假單胞菌MS02為靶標(biāo)菌,深入探究芳樟醇及抗菌膜對(duì)其抑菌機(jī)理。最后,將抗菌膜制備成活性抗菌墊片應(yīng)用于三文魚保鮮實(shí)驗(yàn)中。主要研究結(jié)果如下:1.冷藏三文魚的菌相關(guān)系呈現(xiàn)出動(dòng)態(tài)變化的趨勢(shì),整個(gè)貯藏期間三文魚細(xì)菌總類別為210,從0d到12d的樣品觀察到的細(xì)菌類別分別為121、104、125、135、128。發(fā)光桿菌屬、假單胞菌屬、青枯菌屬和不動(dòng)桿菌屬的細(xì)菌在三文魚貯藏中占主要地位。隨著貯藏時(shí)間的延長(zhǎng),假單胞菌屬的相對(duì)豐度逐漸增大,而莓實(shí)假單胞菌是三文魚在貯藏期間增長(zhǎng)速率最快的菌種。最終成功從腐敗三文魚中分離鑒定出一株P(guān).fragiMS02。2.通過同軸靜電紡絲技術(shù)成功制備LL/PCL納米纖維膜。研究表明,LL/PCL納米纖維膜微觀形貌良好,纖維表面光滑且粗細(xì)均勻。無芯材的PCL膜纖維直徑為113.92±23.74nm,與之對(duì)比,添加了芳樟醇的同軸納米纖維膜直徑增大,含20%和40%濃度芳樟醇的LL/PCL膜的纖維直徑分別為220.62±44.01nm和232.22±56.27nm,且疏水性和水蒸氣透過率得到加強(qiáng),但拉伸強(qiáng)度和斷裂伸長(zhǎng)率略微有些下降,而熱穩(wěn)定性無較大差異。緩釋實(shí)驗(yàn)表明LL/PCL同軸纖維膜能長(zhǎng)時(shí)間釋放芳樟醇到反應(yīng)體系中。3.以分離鑒定出的莓實(shí)假單胞菌MS02為作用對(duì)象,研究芳樟醇和LL/PCL同軸纖維膜的抗菌性能及其抗菌機(jī)理。結(jié)果表明,芳樟醇對(duì)其具有良好的抑菌效果,LL/PCL同軸纖維膜中的芳樟醇能被釋放到反應(yīng)體系中,發(fā)揮其抑菌作用,SEM結(jié)果表明芳樟醇能使細(xì)菌細(xì)胞膜產(chǎn)生凹陷褶皺,而電導(dǎo)率、膜電位、OD<sub>260nm</sub>值、二乙酸熒光素?zé)晒鈴?qiáng)度和AKP、ATP酶活實(shí)驗(yàn)則證明了芳樟醇能破壞莓實(shí)假單胞菌的細(xì)胞膜和細(xì)胞壁的通透性和完整性,影響細(xì)菌細(xì)胞內(nèi)正常能量代謝,導(dǎo)致菌體死亡。4.以LL/PCL同軸纖維膜制備出活性抗菌墊片,并將其應(yīng)用于4℃貯藏三文魚保鮮實(shí)驗(yàn)中。對(duì)三文魚片的感官評(píng)價(jià)、菌落總數(shù)、pH、TBA、TVB-N、水分分布、質(zhì)構(gòu)特性以及電子鼻等指標(biāo)進(jìn)行檢測(cè)分析,結(jié)果顯示食品錫紙和PCL墊片對(duì)三文魚的新鮮度無明顯影響,在貯藏第8d時(shí)已達(dá)到不可食用的臨界點(diǎn),在貯藏第12d時(shí)已完全腐敗;而含有芳樟醇的芳樟醇/PCL靜電紡絲抗菌墊片則能通過釋放芳樟醇減緩三文魚的腐敗速度,在貯藏第12d時(shí)才接近不可食用的臨界點(diǎn),而完全腐敗的時(shí)期也相較延后,說明抗菌墊片能有效地延長(zhǎng)三文魚的貨架期。","event-place":"錦州","genre":"碩士學(xué)位論文","language":"zh","note":"DOI:10.27190/ki.gjzsc.2021.000185\nmajor:食品科學(xué)\nfoundation:“十三五”國(guó)家重點(diǎn)研發(fā)計(jì)劃“現(xiàn)代食品加工及糧食收儲(chǔ)運(yùn)技術(shù)與裝備”重點(diǎn)專項(xiàng)“預(yù)制調(diào)理食品制造關(guān)鍵技術(shù)與新產(chǎn)品研究及新型速凍技術(shù)裝備開發(fā)”子課題“預(yù)制調(diào)理食品營(yíng)養(yǎng)與風(fēng)味調(diào)整關(guān)鍵技術(shù)及新產(chǎn)品研發(fā)”(項(xiàng)目編號(hào):2018YFD0400601);\ndownload:1118\nalbum:工程科技Ⅰ輯\nCLC:TS254.4;TS206.4\ndbcode:CMFD\ndbname:CMFD202102\nfilename:1021585225.nh","number-ofs":"80","publisher":"渤海大學(xué)","publisher-place":"錦州","source":"CNKI","title":"芳樟醇/聚己內(nèi)酯抗菌膜的制備及其在三文魚保鮮中的應(yīng)用研究","title-short":"1","URL":"/10.27190/ki.gjzsc.2021.000185","author":[{"literal":"梅佳林"}],"contributor":[{"literal":"勵(lì)建榮"},{"literal":"李婷婷"}],"accessed":{"date-parts":[["2025",4,28]]},"issued":{"date-parts":[["2021"]]}}}],"schema":"/citation-style-language/schema/raw/master/csl-citation.json"}[8-10]。在農(nóng)業(yè)領(lǐng)域,芳樟醇同樣表現(xiàn)出色。它能夠有效防治植物病害、趨避害蟲,有望成為安全、環(huán)保的農(nóng)藥替代品,從而減少化學(xué)農(nóng)藥的使用,推動(dòng)農(nóng)業(yè)的可持續(xù)發(fā)展ADDINZOTERO_ITEMCSL_CITATION{"citationID":"hij40yvD","properties":{"formattedCitation":"\\super[11]\\nosupersub{}","plainCitation":"[11]","noteIndex":0},"citationItems":[{"id":8672,"uris":["/users/local/yHrIFQFb/items/5E8EL5SF"],"itemData":{"id":8672,"type":"article-journal","abstract":"通過平板抑菌試驗(yàn)和孢子萌發(fā)試驗(yàn)研究了芳樟醇對(duì)灰葡萄孢的生長(zhǎng)抑制作用,并通過盆栽試驗(yàn)進(jìn)一步驗(yàn)證了芳樟醇對(duì)番茄灰霉病的防控效果。結(jié)果表明:芳樟醇能夠顯著抑制灰葡萄孢菌絲的生長(zhǎng),半最大效應(yīng)濃度(EC<sub>50</sub>)值為0.581mL·L<sup>-1</sup>。孢子萌發(fā)試驗(yàn)中,芳樟醇能夠有效抑制灰葡萄孢孢子的萌發(fā),并表現(xiàn)出濃度依賴性。芳樟醇處理提高了灰葡萄孢菌菌絲體的相對(duì)電導(dǎo)率和丙二醛(MDA)含量,說明芳樟醇可引起氧化損傷效應(yīng)導(dǎo)致灰葡萄孢菌的膜系統(tǒng)被破壞;芳樟醇處理后灰葡萄孢菌中的超氧化物歧化酶(SOD)、過氧化氫酶(CAT)、過氧化物酶(POD)活性較對(duì)照組分別下降了27.4%、68.9%和26.0%,說明芳樟醇抑制了灰葡萄孢菌體內(nèi)的抗氧化系統(tǒng)。盆栽試驗(yàn)結(jié)果顯示,芳樟醇處理的病斑直徑較對(duì)照組顯著降低;番茄葉片中的SOD、CAT、POD、多酚氧化酶和苯丙氨酸解氨酶活性均顯著高于對(duì)照組;而MDA含量下降了41.5%,說明芳樟醇可減輕灰葡萄孢菌對(duì)番茄植株造成的氧化損傷以提高植物抗病性。綜上,芳樟醇對(duì)灰葡萄孢的生長(zhǎng)有顯著抑制作用并對(duì)番茄灰霉病有較好的防治效果,研究結(jié)果可為開發(fā)新型植物源抑菌劑防控番茄灰霉病提供理論依據(jù)。","container-title":"應(yīng)用生態(tài)學(xué)報(bào)","DOI":"10.13287/j.1001-9332.202301.011","issue":"1","journalAbbreviation":"應(yīng)用生態(tài)學(xué)報(bào)","language":"zh","note":"foundation:山東省蔬菜產(chǎn)業(yè)技術(shù)體系項(xiàng)目(SDAIT-05);山東省農(nóng)業(yè)重大應(yīng)用技術(shù)創(chuàng)新項(xiàng)目(2018);魯渝科技協(xié)作計(jì)劃項(xiàng)目(2020LYXZ001)資助;\ndownload:1026\nalbum:基礎(chǔ)科學(xué);農(nóng)業(yè)科技\nCLC:S436.412.13\ndbcode:CJFQ\ndbname:CJFDLAST2023\nfilename:YYSB202301027","page":"213-220","source":"CNKI","title":"芳樟醇對(duì)灰葡萄孢生長(zhǎng)的影響及對(duì)番茄灰霉病的防控效果","title-short":"1","volume":"34","author":[{"literal":"王啟方"},{"literal":"王曉云"},{"literal":"李浩森"},{"literal":"楊曉玉"},{"literal":"張銳敏"},{"literal":"鞏彪"},{"literal":"李秀明"},{"literal":"史慶華"}],"issued":{"date-parts":[["2023"]]}}}],"schema":"/citation-style-language/schema/raw/master/csl-citation.json"}[11]??偟膩碚f,芳樟醇作為一種多功能的天然化合物,在日化、食品、醫(yī)藥、農(nóng)業(yè)等多個(gè)領(lǐng)域均有著廣泛的應(yīng)用前景ADDINZOTERO_ITEMCSL_CITATION{"citationID":"0wHyEA1S","properties":{"formattedCitation":"\\super[12]\\nosupersub{}","plainCitation":"[12]","noteIndex":0},"citationItems":[{"id":8674,"uris":["/users/local/yHrIFQFb/items/E29HPJQI"],"itemData":{"id":8674,"type":"thesis","abstract":"第一部分基于GC/MS對(duì)不同產(chǎn)地桂花純露揮發(fā)性成分分析分別以咸寧、池州、繁昌、常德桂花作為原料制備純露,采用氣相色譜-質(zhì)譜聯(lián)用(GC/MS)技術(shù),對(duì)四個(gè)不同產(chǎn)地的桂花純露揮發(fā)性成分進(jìn)行分析鑒定。結(jié)果顯示,咸寧、池州、繁昌、常德共鑒定出成分46個(gè),差異成分6個(gè)。主要香氣物質(zhì)有芳樟醇及其氧化物、γ-癸酸內(nèi)酯、β-紫羅蘭酮、香葉醇等。其成分可以分為醇類、萜烯類、酮類、烷類、酚類、醛類、酯類,桂花純露中揮發(fā)性成分以醇類、酮類和酯類為主,醇類相對(duì)含量為64.80%-73.33%,酮類物質(zhì)相對(duì)含量在9.06-17.07%,其次為酯類化合物相對(duì)含量在8.28%-14.17%。不同產(chǎn)地桂花純露,香氣組分相似,含量有所差異,其中咸寧產(chǎn)地桂花純露揮發(fā)性香氣成分相較于其它三個(gè)產(chǎn)地更為豐富。第二部分芳樟醇對(duì)金黃色葡萄球菌的抗菌活性研究以芳樟醇為藥物測(cè)定其對(duì)金黃色葡萄球菌的MIC值,并初步探究芳樟醇對(duì)金黃色葡萄球菌的抗菌機(jī)制。掃描電鏡觀察,結(jié)果顯示芳樟醇處理后,菌體形態(tài)發(fā)生改變,細(xì)胞表面結(jié)構(gòu)發(fā)生坍塌;8-苯氨基-1-萘磺酸熒光探針(ANS)結(jié)果顯示經(jīng)芳樟醇處理后可以損傷細(xì)胞壁,引起細(xì)胞膜表面疏水基團(tuán)暴露;DNA分子凝膠電泳結(jié)果顯示,隨著芳樟醇濃度和時(shí)間的增加,細(xì)胞內(nèi)DNA含量逐漸減少;紫外分光光度計(jì)測(cè)定細(xì)胞上清液OD<sub>260</sub>,結(jié)果顯示芳樟醇處理可以增強(qiáng)細(xì)胞膜通透性,DNA分子通過率增強(qiáng),核酸物質(zhì)大量外泄;SDS蛋白電泳結(jié)果顯示,隨著芳樟醇處理濃度和時(shí)間的增加,蛋白條帶顏色逐漸變淺,其中20μl/ml芳樟醇處理2h,可以顯著降低菌體內(nèi)蛋白質(zhì)含量;考馬斯藍(lán)測(cè)定細(xì)胞外蛋白質(zhì)含量,結(jié)果顯示,隨著給藥濃度和時(shí)間的增加,細(xì)胞外水溶性蛋白質(zhì)含量逐漸升高;菌體蛋白紅外光譜分析結(jié)果顯示,芳樟醇處理后菌體蛋白質(zhì)二級(jí)結(jié)構(gòu)發(fā)生改變,可能引起功能的改變。以上結(jié)果表明芳樟醇可以通過結(jié)合細(xì)胞膜蛋白,改變細(xì)胞膜通透性,使得大分子物質(zhì)發(fā)生泄露,影響正常生長(zhǎng),從而產(chǎn)生抑菌效果。因而芳樟醇對(duì)金黃色葡萄球菌具有顯著抑菌效果,有望開發(fā)出一種新型天然抗菌劑。","event-place":"咸寧","genre":"碩士學(xué)位論文","language":"zh","note":"DOI:10.27862/ki.ghkxy.2022.000008\nmajor:藥學(xué)\ndownload:993\nalbum:工程科技Ⅰ輯\nCLC:O657.63;TQ654.2\ndbcode:CMFD\ndbname:CMFD202202\nfilename:1022547325.nh","number-ofs":"43","publisher":"湖北科技學(xué)院","publisher-place":"咸寧","source":"CNKI","title":"桂花純露香氣成分分析及芳樟醇的抗菌活性研究","title-short":"1","URL":"/10.27862/ki.ghkxy.2022.000008","author":[{"literal":"胡晶鼎"}],"contributor":[{"literal":"陳洪國(guó)"},{"literal":"史玉敏"}],"accessed":{"date-parts":[["2025",4,28]]},"issued":{"date-parts":[["2022"]]}}}],"schema":"/citation-style-language/schema/raw/master/csl-citation.json"}[12]。其低毒性和環(huán)境友好的特性,使其成為替代傳統(tǒng)化學(xué)品的優(yōu)選ADDINZOTERO_ITEMCSL_CITATION{"citationID":"d4ovgIHH","properties":{"formattedCitation":"\\super[13]\\nosupersub{}","plainCitation":"[13]","noteIndex":0},"citationItems":[{"id":8676,"uris":["/users/local/yHrIFQFb/items/8EBVNQ2F"],"itemData":{"id":8676,"type":"thesis","abstract":"福氏志賀菌(Shigellaflexneri,Sh.flexneri)是一種常見且具有傳染性的致病菌,常在食品和食品加工環(huán)境中發(fā)現(xiàn)(如,鮮切水果,蔬菜,肉類和廢水)。目前,由于細(xì)菌耐藥性基因的傳播,尋找新型抗菌劑十分必要。芳樟醇是一種數(shù)量龐大天然植物提取物,具有廣泛的殺菌、抗炎等特性,將它作為天然抗菌劑用于控制食品中的致病菌具有潛在的應(yīng)用價(jià)值。本研究以細(xì)胞膜和DNA為靶點(diǎn)探究芳樟醇對(duì)福氏志賀菌的抑菌機(jī)理。進(jìn)一步探究了芳樟醇對(duì)受福氏志賀菌污染豬肉中福氏志賀菌活性及豬肉品質(zhì)的影響,通過豬肉蛋白組學(xué)研究,將鑒定獲得的差異蛋白進(jìn)行GO(GeneOntology)注釋和KEGG(KyotoEncyclopediaofGenesandGenomes)通路分析從而探索芳樟醇延緩受污染豬肉品質(zhì)下降的機(jī)制。基于芳樟醇優(yōu)良的的抑菌性能,為解決其因揮發(fā)性高、水溶性低且穩(wěn)定性差導(dǎo)致的實(shí)際應(yīng)用受限的問題,開發(fā)了一種以明膠/瓊脂為基質(zhì),以富含花青素的蔓越莓提取物(pH指示劑)和芳樟醇?xì)ぞ厶羌{米粒子為添加物的納米粒子功能復(fù)合膜,以期為芳樟醇更好應(yīng)用到食品行業(yè)打下基礎(chǔ),也為其深度利用提供新的視野。主要研究結(jié)果如下:(1)探究芳樟醇能夠Sh.flexneri生長(zhǎng)的抑制作用機(jī)制。芳樟醇對(duì)Sh.flexneri的最小抑菌濃度(MIC)和最小殺菌濃度(MBC)分別為1μL/mL和4μL/mL。生長(zhǎng)曲線表明,在MIC濃度下,芳樟醇能夠完全抑制Sh.flexneri的生長(zhǎng)。進(jìn)一步探究了芳樟醇對(duì)Sh.flexneri的抑菌機(jī)理,結(jié)果表明芳樟醇能夠降低細(xì)菌細(xì)胞活力、破壞細(xì)胞形態(tài),造成細(xì)胞膜不可逆損傷和細(xì)胞內(nèi)容物滲漏,并與Sh.flexneri的DNA以溝槽模式結(jié)合。在此基礎(chǔ)上,芳樟醇可以抑制Sh.flexneri生物膜的形成,消除不同材料表面的成熟生物膜。(2)探究芳樟醇對(duì)豬肉中福氏志賀菌的生長(zhǎng)及豬肉品質(zhì)的影響。使用芳樟醇(0、MIC、MBC)對(duì)受福氏志賀菌污染的豬肉進(jìn)行處理,并在特定時(shí)間間隔(0、2、4、6和8天)取樣以測(cè)定芳樟醇對(duì)受污染豬肉的品質(zhì)影響。結(jié)果表明芳樟醇能夠抑制豬肉中福氏志賀菌的活性,延緩豬肉失重率、色澤(a<sup>*</sup>、b<sup>*</sup>、L<sup>*</sup>值)、pH值、揮發(fā)性鹽基氮(TVB-N)值的變化。蛋白質(zhì)組學(xué)分析表明芳樟醇能夠調(diào)控蛋白在豬肉中的表達(dá)。結(jié)果表明芳樟醇能夠延緩受污染豬肉4℃貯藏期內(nèi)的品質(zhì)降低。(3)探究芳樟醇納米粒子對(duì)明膠/瓊脂基pH顏色指示膜的影響。探究了蔓越莓提取物在不同的pH條件下的顏色改變。將蔓越莓提取物(pH指示劑)與芳樟醇?xì)ぞ厶羌{米粒子(L-NPs)嵌入明膠/瓊脂膜基質(zhì)開發(fā)納米粒子功能復(fù)合膜。通過紅外光譜(FTIR)和X-射線衍射光譜(XRD)分析各組分之間的相互作用。此外,熱重分析(TGA)進(jìn)一步證實(shí)了這些薄膜具有良好的熱穩(wěn)定性。微觀結(jié)構(gòu)證明,蔓越莓提取物和L-NPs與薄膜基質(zhì)相互作用,均勻分散在明膠/瓊脂膜基質(zhì)中。薄膜的物理性能(厚度、含水率、水溶解度、水接觸角和機(jī)械性能)表明,L-NPs能夠降低薄膜的親水性,提高薄膜的柔韌性,。此外,蔓越莓提取物在薄膜中仍然具有有效的pH敏感性,蔓越莓提取物和納米粒子顯著提高了薄膜對(duì)浮游金黃色葡萄球菌(Staphylococcusaureus,S.aureus)和大腸桿菌(Escherichiacoli,E.coli)的抑制活性和抗氧化活性。整體上,蔓越莓提取物和納米粒子添加到明膠/瓊脂基薄膜中能夠制備一種具有pH敏感性、具有良好的抗菌和抗氧化性能的多功能復(fù)合膜。","event-place":"西安","genre":"碩士學(xué)位論文","language":"zh","note":"DOI:10.27292/ki.gsxfu.2022.000715\nmajor:工程碩士(專業(yè)學(xué)位)\ndownload:261\nalbum:工程科技Ⅰ輯\nCLC:TS251.51\ndbcode:CMFD\ndbname:CMFD202402\nfilename:1022747963.nh","number-ofs":"83","publisher":"陜西師范大學(xué)","publisher-place":"西安","source":"CNKI","title":"芳樟醇對(duì)福氏志賀菌生長(zhǎng)的抑制作用及其復(fù)合保鮮膜的探究","title-short":"1","URL":"/10.27292/ki.gsxfu.2022.000715","author":[{"literal":"宋雪盈"}],"contributor":[{"literal":"劉柳"}],"accessed":{"date-parts":[["2025",4,28]]},"issued":{"date-parts":[["2024"]]}}}],"schema":"/citation-style-language/schema/raw/master/csl-citation.json"}[13]。未來,研究還需進(jìn)一步驗(yàn)證其在抗病毒、抗癌等方面的潛力,并不斷優(yōu)化生產(chǎn)工藝,以滿足日益增長(zhǎng)的市場(chǎng)需求ADDINZOTERO_ITEMCSL_CITATION{"citationID":"gW8YmJmz","properties":{"formattedCitation":"\\super[14]\\nosupersub{}","plainCitation":"[14]","noteIndex":0},"citationItems":[{"id":8666,"uris":["/users/local/yHrIFQFb/items/NJW79AF6"],"itemData":{"id":8666,"type":"article-journal","abstract":"目的:探討芳樟醇對(duì)黃曲霉毒素B<sub>1</sub>(AFB<sub>1</sub>)誘導(dǎo)的大鼠急性肝損傷的保護(hù)作用,并初步探討其保護(hù)機(jī)制。方法:20只雄性SPF級(jí)SD大鼠,采用隨機(jī)數(shù)字表法分為3組:正常組(n=6),AFB<sub>1</sub>組(n=7),芳樟醇組(n=7)。預(yù)防性給予芳樟醇溶液(200mg·kg-1)持續(xù)14d,正常組和AFB<sub>1</sub>組給予等體積雙蒸水灌胃。芳樟醇預(yù)防性給藥結(jié)束后,連續(xù)2d腹腔注射AFB<sub>1</sub>(1mg·kg-1,溶于生理鹽水)溶液,以建立大鼠急性肝損傷模型。模型建立14d后進(jìn)行樣本采集和處理。蘇木素-伊紅(HE)染色和馬松(Masson)染色觀察大鼠肝組織病理學(xué)改變;生化檢測(cè)各組大鼠的丙氨酸氨基轉(zhuǎn)氨酶(ALT)、天冬氨酸轉(zhuǎn)氨酶(AST)、γ-谷氨酰轉(zhuǎn)移酶(GGT)、乳酸脫氫酶(LDH)、堿性磷酸酶(ALP)、總膽紅素(TBil)、直接膽紅素(DBil)和間接膽紅素(IBil)、丙二醛(MDA)、超氧化物歧化酶(SOD)、過氧化氫酶(CAT)、谷胱甘肽(GSH)和肝組織中的Fe3+和Fe2+含量;蛋白免疫印跡法(Westerblot)檢測(cè)核轉(zhuǎn)錄因子紅系2相關(guān)因子2(Nrf2)和血紅素氧合酶-1(HO-1)蛋白的表達(dá)水平;分子對(duì)接技術(shù)驗(yàn)證芳樟醇與Nrf2/HO-1信號(hào)通路關(guān)鍵蛋白之間的結(jié)合性能;分子動(dòng)力學(xué)技術(shù)驗(yàn)證芳樟醇與Nrf2/HO-1信號(hào)通路關(guān)鍵蛋白結(jié)合能的穩(wěn)定性和親和力。結(jié)果:病理結(jié)果表明,與AFB<sub>1</sub>組比較,芳樟醇組肝臟結(jié)構(gòu)趨向正常,藍(lán)色膠原纖維顯著減少;芳樟醇組的ALT、AST、GGT、LDH含量及ALP、TBil、DBil、IBil水平均顯著降低(P<0.01),肝組織中的Fe3+和Fe2+含量及氧化應(yīng)激產(chǎn)物MDA的水平顯著降低(P<0.01);抗氧化物質(zhì)SOD水平、CAT含量和GSH含量則顯著增加(P<0.01);分子對(duì)接結(jié)果顯示芳樟醇與Nrf2、HO-1靶點(diǎn)結(jié)合的分子對(duì)接能分別為-5.4956、-5.1994kcal·mol-1(1cal≈4.186J);分子動(dòng)力學(xué)結(jié)果顯示芳樟醇與Nrf2、HO-1結(jié)合能與親和力較強(qiáng)。Westernblot結(jié)果顯示芳樟醇組中Nrf2蛋白的表達(dá)水平明顯升高(P<0.05),而HO-1蛋白的表達(dá)水平顯著降低(P<0.01)。結(jié)論:芳樟醇可能通過調(diào)控鐵死亡信號(hào)通路中的Nrf2/HO-1來抑制肝臟細(xì)胞鐵死亡并調(diào)節(jié)肝臟氧化應(yīng)激水平,從而實(shí)現(xiàn)對(duì)AFB<sub>1</sub>誘導(dǎo)的急性肝損傷的保護(hù)作用。","container-title":"中國(guó)實(shí)驗(yàn)方劑學(xué)雜志","DOI":"10.13422/ki.syfjx.20240816","issue":"14","journalAbbreviation":"中國(guó)實(shí)驗(yàn)方劑學(xué)雜志","language":"zh","note":"foundation:國(guó)家中醫(yī)藥管理局高水平中醫(yī)藥重點(diǎn)學(xué)科建設(shè)項(xiàng)目臨床中藥學(xué)(zyyzdxk-2023257);\ndownload:718\nalbum:醫(yī)藥衛(wèi)生科技\nCLC:R285.5\ndbcode:CJFQ\ndbname:CJFDLAST2024\nfilename:ZSFX202414011","page":"89-96","source":"CNKI","title":"芳樟醇調(diào)控Nrf2/HO-1抑制黃曲霉毒素B<sub>1</sub>所致肝損傷的實(shí)驗(yàn)","title-short":"1","volume":"30","author":[{"literal":"王萌"},{"literal":"薛春苗"},{"literal":"黃鑫"},{"literal":"劉文卉"},{"literal":"高若瑜"},{"literal":"白雪慧"},{"literal":"華國(guó)棟"},{"literal":"朱寶琛"}],"issued":{"date-parts":[["2024"]]}}}],"schema":"/citation-style-language/schema/raw/master/csl-citation.json"}[14]。1.2寄生曲霉及黃曲霉毒素的危害寄生曲霉(Aspergillusparasiticus)隸屬于曲霉科(Aspergillaceae),是一種在自然界中廣泛分布且常見的產(chǎn)毒霉菌ADDINZOTERO_ITEMCSL_CITATION{"citationID":"uEVDE65m","properties":{"formattedCitation":"\\super[15]\\nosupersub{}","plainCitation":"[15]","noteIndex":0},"citationItems":[{"id":8692,"uris":["/users/local/yHrIFQFb/items/DMU8M5XD"],"itemData":{"id":8692,"type":"article-journal","abstract":"紫蘇醛是從紫蘇葉中提取出來的一種綠色安全的天然抑菌物質(zhì),同時(shí)也被作為食品添加劑應(yīng)用到食品生產(chǎn)中。本研究通過最小抑菌濃度、孢子萌發(fā)率和菌絲生長(zhǎng)抑制實(shí)驗(yàn)探究了紫蘇醛對(duì)楊梅主要致病菌桔青霉的抑菌效果,并通過研究桔青霉菌絲形態(tài)和超微結(jié)構(gòu)、細(xì)胞膜損傷機(jī)制、膜脂過氧化情況以及官能團(tuán)變化,探討桔青霉的抑菌機(jī)理。結(jié)果表明:紫蘇醛對(duì)桔青霉的最小抑菌濃度為120μL/L;經(jīng)過120μL/L紫蘇醛處理后菌絲生長(zhǎng)得到完全抑制,相對(duì)電導(dǎo)率、丙二醛含量上升,與未處理組相比,經(jīng)過90μL/L紫蘇醛處理的桔青霉中麥角固醇、總脂質(zhì)、幾丁質(zhì)水平和線粒體ATP酶活力分別下降了80.00%、81.25%、64.97%和87.40%,破壞了桔青霉細(xì)胞膜的通透性,影響細(xì)胞膜正常生理功能;掃描電子顯微鏡和透射電子顯微鏡觀察發(fā)現(xiàn),紫蘇醛處理后的桔青霉頭部掃帚狀分生孢子頭消失,菌絲出現(xiàn)斷裂、消融等現(xiàn)象,同時(shí)細(xì)胞膜遭到破壞,內(nèi)容物外泄,細(xì)胞內(nèi)部發(fā)生皺縮。與0h相比,處理5h時(shí)120μL/L紫蘇醛處理組的桔青霉中可溶性蛋白、可溶性糖和核酸泄漏量分別增加了71.20%、210.93%和117.31%,驗(yàn)證了細(xì)胞膜損傷情況;通過傅里葉變換紅外光譜發(fā)現(xiàn),紫蘇醛處理的桔青霉羥基、甲基、芳香族碳骨架、苯環(huán)碳骨架等官能團(tuán)含量下降,內(nèi)部物質(zhì)被逐漸消耗。綜上,紫蘇醛對(duì)楊梅主要致病菌桔青霉具有良好的抑菌效果,通過破壞細(xì)胞膜結(jié)構(gòu)、改變膜通透性、干擾能量代謝及破壞蛋白質(zhì)和遺傳物質(zhì)等途徑發(fā)揮抑菌作用,可作為天然保鮮劑具有一定研究和開發(fā)前景。","container-title":"食品科學(xué)","issue":"15","journalAbbreviation":"食品科學(xué)","language":"zh","note":"foundation:浙江省重點(diǎn)研發(fā)計(jì)劃項(xiàng)目(2021C02015);溫州環(huán)大羅山省級(jí)現(xiàn)代農(nóng)業(yè)園區(qū)科技支撐項(xiàng)目(WZDLS2021-10);“十四五”國(guó)家重點(diǎn)研發(fā)計(jì)劃項(xiàng)目(2021YFD2100505);\ndownload:1166\nalbum:工程科技Ⅰ輯\nCLC:TS255.3\ndbcode:CJFQ\ndbname:CJFDLAST2023\nfilename:SPKX202315023","page":"196-203","source":"CNKI","title":"紫蘇醛對(duì)楊梅主要致病菌桔青霉的抑菌活性及作用機(jī)制","title-short":"1","volume":"44","author":[{"literal":"李瑞一"},{"literal":"吳偉杰"},{"literal":"房祥軍"},{"literal":"陳杭君"},{"literal":"韓延超"},{"literal":"牛犇"},{"literal":"陳慧芝"},{"literal":"郜海燕"}],"issued":{"date-parts":[["2023"]]}}}],"schema":"/citation-style-language/schema/raw/master/csl-citation.json"}[15]。這種霉菌的分布范圍極為廣泛,從土壤到各種植物,再到各類食品和飼料,幾乎無處不在。特別是在溫暖潮濕的環(huán)境條件下(溫度范圍大約在25-32攝氏度,濕度范圍在80-90%),寄生曲霉的繁殖速度會(huì)顯著加快,展現(xiàn)出其強(qiáng)大的環(huán)境適應(yīng)能力ADDINZOTERO_ITEM

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