Volume 8, Issue 30 (2011)
FSCT 2011, 8(30): 89-100 |
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Kombucha production using extracted inulin from jerusalem artichoke tuber. FSCT 2011; 8 (30) :89-100
URL: http://fsct.modares.ac.ir/article-7-10111-en.html
URL: http://fsct.modares.ac.ir/article-7-10111-en.html
Abstract: (9947 Views)
Kombucha is a non-dairy fermented beverage. Traditional substrate for kombucha production is sweetened black tea. Kombucha culture can also use other carbohydrates such as inulin and oligofructose as a substrate. In this study inulin and oligofructose extracted from Jerusalem artichoke tuber at 0, 2, 4, 6, 8 and 10% were used as substrates for kombucha fermentation. The chemical changes during fermentation period were compared with those occurred during traditional substrate fermentation at the same concentrations. The rate of inulin fermentation by kombucha culture was higher than that of sucrose fermentation. The pH value in kombucha produced with inulin was higher than that of traditional product. Acetic acid and lactic acid measurements using HPLC showed that the acetic and lactic acid contents of traditional product was higher and lower than the kombucha produced with inulin, respectively. Soluble protein content and antioxidant activity was higher in kombucha produced with inulin as a substrate. Thus, using inulin as a substrate for kombucha culture decreases fermentation time and produces a product with high pH.
Received: 2009/04/6 | Accepted: 2009/06/28 | Published: 2011/09/29
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