Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10973087 | Journal of Dairy Science | 2016 | 12 Pages |
Abstract
The objective of this study was to investigate the effect of 2 plant leaf extracts on fermentation mechanisms and health-promoting activities and their potential as a nutraceutical prebiotics ingredient for application in dairy products. The individual active phenolic compounds in the plant extract-supplemented milk and yogurts were also identified. Compared with control fermentation, the plant extracts significantly increased the growth and acidification rate of Streptococcus thermophilus and Lactobacillus delbrueckii ssp. bulgaricus. In particular, plant extract components, including monosaccharides, formic acid, and hydroxycinnamic acid, such as neo-chlorogenic, chlorogenic, and caffeic acid, together play a stimulatory role and cause this beneficial effect on the growth of yogurt culture bacteria through fermentation. In addition, supplementation with the plant extracts enhanced antioxidant activities with increased total phenolic contents, especially the highest antioxidant activity was observed in yogurt supplemented with Cudrania tricuspidata leaf extract.
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Authors
Nam Su Oh, Ji Young Lee, Jae Yeon Joung, Kyung Su Kim, Yong Kook Shin, Kwang-Won Lee, Sae Hun Kim, Sangnam Oh, Younghoon Kim,