a Department of Food and Nutritional Sciences , University of Reading , Reading , UK.
Int J Food Sci Nutr. 2018 Sep;69(6):696-704. doi: 10.1080/09637486.2017.1404970. Epub 2018 Jan 16.
Interest in the consumption of gum acacia (GA) has been associated with beneficial health effects, which may be mediated in part by prebiotic activity. Two doses of GA and fructooligosaccharide (FOS) (1 and 2%) were tested for their efficacy over 48 h in pH- and temperature-controlled anaerobic batch cultures inoculated with human faeces. Samples were taken after 0, 5, 10, 24 and 48 h of fermentation. The selective effects of GA (increases in Bifidobacterium spp. and Lactobacillus spp.) were similar to those of the known prebiotic FOS. The 1% dose of substrates showed more enhanced selectivity compared to the 2% dose. The fermentation of GA also led to SCFA production, specifically increased acetate after 10, 24 and 48 h of fermentation, propionate after 48 h and butyrate after 24 and 48 h. In addition, FOS led to significant increase in the main SCFAs. These results suggest that GA displays potential prebiotic properties.
人们对胶基阿拉伯树胶（GA）的消费兴趣与有益的健康影响有关，这可能部分是通过益生元活性介导的。在 pH 和温度控制的厌氧批量培养物中，用人体粪便接种，测试了两种剂量的 GA 和低聚果糖（FOS）（1%和 2%）在 48 小时内的功效。发酵 0、5、10、24 和 48 小时后取样。GA（双歧杆菌和乳酸杆菌属的增加）的选择性作用与已知的益生元 FOS 相似。与 2%剂量相比，1%剂量的底物显示出更高的选择性增强。GA 的发酵还导致了 SCFA 的产生，特别是在发酵 10、24 和 48 小时后乙酸增加，在 48 小时后丙酸增加，在 24 和 48 小时后丁酸增加。此外，FOS 导致主要 SCFA 显著增加。这些结果表明 GA 具有潜在的益生元特性。
