百香果与柠檬对贵州红酸汤发酵品质的影响

Influence of Passiflora edulis and Citurs limon fruit on the fermentation quality of Guizhou red acid soup

中文关键词:  百香果、柠檬、红酸汤  发酵

英文关键词:Passiflora edulis  Citurs limon  red acid soup  fermentation

中文摘要:

      目的 研究百香果、柠檬对贵州红酸汤发酵品质的影响。方法 选择不同浓度的百香果与柠檬作为添加物, 对发酵过程中酸汤中维生素C (vitamin C, VC)、还原糖、pH、可滴定酸、氨基酸以及生物胺含量进行测定。结果 在发酵40 d时, 10%添加量的百香果和柠檬的酸汤相较空白样品, VC含量分别上升8.25 mg/100 g和7.70 mg/100 g,还原糖分别下降1.08 mg/mL与1.89 mg/mL, pH分别下降0.24、0.37、可滴定酸含量分别上升0.38%与0.48%, 其生物胺总量由193.70 mg/kg分别下降为152.28 mg/kg和150.46 mg/kg, 在添加浓度6%~8%左右时, 天门冬氨酸、谷氨酸以及脯氨酸的含量明显增加。结论 百香果和柠檬能有效改善红酸汤品质与营养, 影响酸汤中VC、还原糖、pH、可滴定酸、氨基酸含量, 降低有害的生物胺的量。二种添加物对酸汤发酵影响存在差异, 在实际发酵过程中需要根据需求选择合适的添加物与添加量。

英文摘要:

      Objective To study the influence of Passiflora edulis and Citurs limon on the fermentation quality of Guizhou red acid soup. Methods The content of vitamin C (VC), reducing sugar, pH, titratable acid, amino acid and biogenic amine in the fermentation soup were determined with different concentrations of Passiflora edulis and Citurs limon. Results In 10% added amounts of passion fruit and citric acid soup at 40 d of fermentation, The VC content increased by 8.25 mg/100 mg and 7.70 mg/100 g respectively compared with the blank samples, Reduced sugars decreased by 1.08 mg/mL and 1.89 mg/mL, respectively, pH decreased by 0.24, 0.37, titratable acid content increased by 0.38% and 0.48%, respectively. The total amount of biogenic amines decreased from 193.70 mg/kg to 152.28 mg kg and 150.46 mg/kg, respectively. The content of aspartate, glutamate and proline increased significantly when the concentration was about 6% to 8%. Conclusion Passiflora edulis and Citurs limon can effectively improve the quality and nutrition of red acid soup, affect the content of VC, reducing sugar, pH, titratable acid and amino acid in acid soup, and reduce the amount of harmful biological amines. There are differences in the effects of the 2 kinds of additives on the fermentation of acid soup. In the actual fermentation process, the appropriate additives and amounts need to be selected according to the needs.