日本畜産学会第125回大会
2019年3月27日〜3月30日麻布大学
日本畜産学会第125回大会
2019年3月27日〜3月30日麻布大学
[II29-04E]Effect of prompt and delayed packaging on fermentation and aerobic stability of soybean curd residue
○Wail Ajmal, Turuta Takeshi, Nishino Naoki(Okayama Univ.)
[Objective] Tofu waste or soybean curd residue (SCR) would spoil soon after production especially in summer. Ensiling is a most convenient way to preserve SCR, but quick packaging is not necessarily secured in practice. In this study, we examined if prompt and delayed packaging may influence on fermentation and aerobic stability of SCR silage.
[Methods] Soybean curd residue was obtained from two tofu factories. A 300 g of wet SCR was mixed with 60g of rice straw or beet pulp, and then packaged in a plastic bag. Silages were opened after 14 and 60 days, and the aerobic stability was tested for 7 days. Culture dependent and culture independent bacterial analyses were conducted.
[Results] Regardless of factories, lactic acid predominated over the fermentation of SCR silage even without any additions. Effect of mixing with beet pulp and rice straw was different according to the factories that SCR was obtained. Although silage was well preserved, spoilage was observed after aerobic exposure for promptly packaged silages. Interestingly, spoilage was not seen for silages with delayed packaging. Bacteria and fungi involving in these findings are now examined.
[Methods] Soybean curd residue was obtained from two tofu factories. A 300 g of wet SCR was mixed with 60g of rice straw or beet pulp, and then packaged in a plastic bag. Silages were opened after 14 and 60 days, and the aerobic stability was tested for 7 days. Culture dependent and culture independent bacterial analyses were conducted.
[Results] Regardless of factories, lactic acid predominated over the fermentation of SCR silage even without any additions. Effect of mixing with beet pulp and rice straw was different according to the factories that SCR was obtained. Although silage was well preserved, spoilage was observed after aerobic exposure for promptly packaged silages. Interestingly, spoilage was not seen for silages with delayed packaging. Bacteria and fungi involving in these findings are now examined.