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Additive Effects of Green Tea on Fermented Juice of Epiphytic Lactic Acid Bacteria (FJLB) and the Fermentative Quality of Rhodesgrass Silage
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 Title & Authors
Additive Effects of Green Tea on Fermented Juice of Epiphytic Lactic Acid Bacteria (FJLB) and the Fermentative Quality of Rhodesgrass Silage
Burrenok, Smerjai; Tamaki, Masanobu; Kawamoto, Yasuhiro; Nakada, Tadashi;
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Two experiments were carried out on a laboratory scale. The first involved a study of the effect of green tea on characteristics of fermented juice of epiphytic lactic acid bacteria (FJLB). FJLB was treated with 50 g/L of green tea products as follows: new shoot powder (FJLB+N), leaf powder (FJLB+L), commercial powder (FJLB+P), sterilized new shoot powder (FJLB+SN), sterilized leaf powder (FJLB+SL) or sterilized commercial powder (FJLB+SP). FJLB without any additive was also prepared (Untreated FJLB). After incubation, the number of microorganisms in FJLB were studied. Subsequently, these FJLB were applied at 10 ml/kg to chopped rhodesgrass to study their effects on fermentation. Compared with untreated FJLB, the addition of green tea increased (p<0.05) lactic acid bacteria (LAB) and also aerobic bacteria counts in FJLB. At 60 d of ensiling, all the FJLB treated silages were well preserved, pH and butyric acid content were lower (p<0.001) and lactic acid was higher (p<0.001) than that of the control. Lactic acid content was significantly higher (p<0.001) with treated FJLB than with untreated FJLB. FJLB treated with sterilized green tea decreased (p<0.001) the pH and the lactic acid content was higher (p<0.001) than that in the unsterilized green tea silages.
Green Tea;Lactic Acid Bacteria;Rhodesgrass;Silage;
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