排序方式： 共有2条查询结果，搜索用时 0 毫秒
1
1.
Silver carp fish pastes inoculated with or without a douchi starter culture containing live Aspergillus oryzae were fermented for 30 days to produce two different fermented products, designated CulF and ConF, respectively. Protein degradation and flavor compound production during the course of fermentation were monitored. Proteolytic activity, generally higher in CulF than in ConF (P < 0.05) and dominated by acidic and serine proteases, declined to an overall minimum after 30 days. Myosin in the CulF and ConF extractives was completely degraded after 1 and 5 days, respectively. The content of free amino acids and low molecular weight (<1.3 kDa) peptides rose rapidly in CulF and progressively in ConF (P < 0.05). Ethanol, silanediol, pyrazine, phenol, and formic acid were prevalent volatile compounds in CulF, whereas butanol, butanoic acid, and acetic acid were abundant in ConF. Therefore, douchi-inoculated fermentation is an attractive process to produce savory fish pastes. 相似文献
2.
研究了采用响应面分析方法从草鱼的鱼皮中提取鱼明胶的最佳工艺。考察了盐酸浓度、预处理时间、提取温度和提取时间对鱼明胶得率和凝胶强度的影响。经过响应面分析,得到从草鱼皮中提取明胶的最佳工艺为盐酸浓度1.19%(v/v),预处理24h,在52.61℃下提取5.12h,明胶的得率和凝胶强度分别为19.83%和267g,所得明胶的凝胶点和溶点分别是19.5℃和26.8℃。此外,草鱼皮明胶中的氨基酸组成中,脯氨酸和羟脯氨酸的总含量为19.47%。 相似文献
1