Changes in characteristic volatile aroma substances during fermentation and deodorization of Gracilaria lemaneiformis by lactic acid bacteria and yeast
文献类型： 外文期刊
作者： Liang, Zhangcheng 1 ; Yang, Chao 2 ; He, Zhigang 1 ; Lin, Xiaozi 1 ; Chen, Bingyan 1 ; Li, Weixin 1 ;
作者机构： 1.Fujian Acad Agr Sci, Inst Agr Engn Technol, Fuzhou, Fujian, Peoples R China
2.Fujian Key Lab Agr Prod Food Proc, Fuzhou, Fujian, Peoples R China
3.Fujian Acad Agr Sci, Inst Agr Engn Technol, 247 Wu Si Rd, Fuzhou 350003, Fujian, Peoples R China
关键词： Gracilaria lemaneiformis; Potentially characteristic volatile aromatic; substances; Complex strains fermentation; Microbial deodorization; Saccharomyces cerevisiae strain JJ4; Lactobacillus parasei subspecies parasei strain; RP38
期刊名称：FOOD CHEMISTRY （ 影响因子：8.8； 五年影响因子：8.6 ）
ISSN： 0308-8146
年卷期： 2023 年 405 卷
页码：
收录情况： SCI
摘要： Gracilaria lemaneiformis is a source of several bioactive natural products in China. Previously, we obtained Saccharomyces cerevisiae JJ4 and Lactobacillus paracasei paracasei RP38, that reduced the fishy odor of G. lemaneiformis. However, the associated deodorization mechanisms remain unclear. Here, G. lemaneiformis was fermented using single strain JJ4, single strain RP38, and both strains together. Dynamic changes in volatile aroma substances during fermentation were measured using HS-SPME-GC/MS. We found that the unpleasant aromas of raw G. lemaneiformis were primarily due to 3-octanone, cyclooctanol, and 1-methylcycloheptanol. Fermentation with lactic acid bacteria and yeast could reduce the substances associated with unpleasant aromas. The potentially characteristic aromatic substances consumed and produced by the different strains were determined using Opls-da and Spearman's correlations with VIP value >1 and |r| > 0.6. These results help to clarify the metabolic mechanisms by which different microbes reduce the fishy smell of G. lemaneiformis.
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