基于菌絲分布面積占比的倉儲煙葉霉變分級研究

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中圖分類號：S435.72 文獻(xiàn)標(biāo)識碼：A文章編號：1007-5119（2025）04-0051-09

Abstract： Curent gradingofmoldcontaminationmainlyreliesonsensory evaluation intobacco industy， whichlead toefcient assessment and managementof moldytobacco with significant discrepancies.Todevelopanobjective andeffective grading system for moldcontamination，this studyselecteda mixedfungal strainof Aspergilusniger and Penicilium citrinumas experimental inoculum，basdothpdoantivablecorgansmsinoldoamatedtobaccolves.Underotrolldature and humidityconditions，tobacc strips were inoculated withthe mixedspore suspension，and theprogressionof mold growth was monitored by measuring the mycelial distribution area，mold colony count， and CO2 concentration.The results revealed a power-law corelationbetweentheproportionofmyelialdistributionareaandmoldcountpergram，whichcouldserveasaeliablequantitative indicator of mold severity and progression. Furthermore，the inflection point in CO2 concentration during early-stage mold growth corresponded toaspecifictreshold inmycelialdistributionarea，markingtheonsetofthelogarithmic growth phase.UsingK-means clusteringanalysis，thdegeeofoldcontamationbeyondthisinfletionpointascasifedintofvedistitseveritlelsbased ontheproportionof mycelial distributionarea.As validatedagainstmoldcolonycounts，this grading methodexhibitedanaverage misgrading rate of only 1.16% . The grading system can increase the evaluation accurancy for mold contamination in tobacco， and propose a more precise and efficient tool for quality control in tobacco storage and management.

Keywords： proportion of mycelial distribution area; tobacco mold; mold grading; clustering analysis

煙草是我國重要的經(jīng)濟(jì)作物之一[1]，而煙葉品質(zhì)直接影響卷煙產(chǎn)品質(zhì)量。（剩余15492字）