食品科学2025，Vol.46Issue(7)：11-22,12.DOI:10.7506/spkx1002-6630-20240828-218
高产脂肪酶乳酸菌的筛选及其对切达干酪内酯类化合物形成的影响
Screening of High Lipase-Producing Lactic Acid Bacteria Strains and Their Effects on the Formation of Lactone Compounds in Cheddar Cheese
摘要
Abstract
In this study,lipase-producing lactic acid bacteria(LAB)were isolated from traditional fermented foods and screened for their growth characteristics and lactone-producing ability in a fast-ripened cheese slurry model.The selected strains were used as an adjunct starter culture for making Cheddar cheese.Sensory evaluation and gas chromatography-mass spectrometry(GC-MS)were used to compare changes in the flavor and lactone content of Cheddar cheese made with and without an adjunct starter during ripening at 4,10 or 14℃for up to 150 days.The results showed that Pediococcus acidilactici 4D and Lactococcus garvieae Y3,two strains with the ability to produce lipase,exhibited better lactone production performance.Sensory evaluation showed that compared with Cheddar cheese without adjunct starter,the cheese added with P.acidilactici 4D had the highest milky and fruity aroma intensity after 90 days of ripening at 10 and 14℃,respectively.The cheese added with L.garvieae Y3 showed the highest milky aroma intensity after 120 days of ripening at 14℃.Four lactones were identified by GC-MS.The contents of δ-decalactone and δ-dodecalactone in Cheddar cheese with P.acidilactici 4D or L.garvieae Y3 were higher than those in Cheddar cheese without adjunct starter at all three ripening temperatures,and both strains could promote the formation of δ-octolactone.In addition,γ-butyrolactone was identified only in Cheddar cheese fermented by L.garvieae Y3.By exploring the effects of ripening temperature and time on the formation of lactones,it was found that the optimal ripening temperature was 14℃.The total lactone content of cheese added with P.acidilactici 4D reached the highest level at 90 days of ripening,while that with L.garvieae Y3 reached the highest level at 120 days.关键词
乳酸菌/脂肪酶/切达干酪/内酯化合物/附属发酵剂Key words
lactic acid bacteria/lipase/Cheddar cheese/lactone compounds/adjunct starter分类
轻工业引用本文复制引用
田怀香,黄宁炜,葛畅,杨睿,于海燕,陈臣..高产脂肪酶乳酸菌的筛选及其对切达干酪内酯类化合物形成的影响[J].食品科学,2025,46(7):11-22,12.基金项目
国家自然科学基金面上项目(32072346) （32072346）
上海市科委"上海工程技术研究中心"项目(20DZ2255600) （20DZ2255600）
