고수분 유기성 물질인 맥주박, 베지밀박 등의 농산가공부산물들은 상온에서 변패성이 강하여 가축의 사료로 이용하기위해서는 보관성증진을 위한 첨가제의 처리가 중요하다. 본 연구에서는 맥주박과 베지밀박을 소금, 유기산, 발효미생물 및 메치오닌수산화물(MHA)을 처리하여 고온다습한 7월중순경에 상온에서 20일간 방치한 후 보관일수에 따른 시료의 표면연화현상과 곰팡이 발생양상, 시료내부 pH, 암모니아태질소 함량변화를 조사하여 각 첨가제의 시료에 대한 변패방지효과를 비교한 결과, MHA 5%이상 처리구에서 특별한 효과가 있는 것으로 나타내었다.
고수분 유기성 물질인 맥주박, 베지밀박 등의 농산가공부산물들은 상온에서 변패성이 강하여 가축의 사료로 이용하기위해서는 보관성증진을 위한 첨가제의 처리가 중요하다. 본 연구에서는 맥주박과 베지밀박을 소금, 유기산, 발효미생물 및 메치오닌수산화물(MHA)을 처리하여 고온다습한 7월중순경에 상온에서 20일간 방치한 후 보관일수에 따른 시료의 표면연화현상과 곰팡이 발생양상, 시료내부 pH, 암모니아태질소 함량변화를 조사하여 각 첨가제의 시료에 대한 변패방지효과를 비교한 결과, MHA 5%이상 처리구에서 특별한 효과가 있는 것으로 나타내었다.
This experiment was carried out to evaluate supplemental effects of various preservatives to preserve the Brewers grain and Soymilk from decay and degeneration. The NaCl, organic acid(Ca-propionate), microbial fermenter(H/MF inoculant), and methionine hydroxy analogue(MHA) were used as additives in ...
This experiment was carried out to evaluate supplemental effects of various preservatives to preserve the Brewers grain and Soymilk from decay and degeneration. The NaCl, organic acid(Ca-propionate), microbial fermenter(H/MF inoculant), and methionine hydroxy analogue(MHA) were used as additives in order to compare preservability of brewers grain and soymilk by-product during 20 days at July to August. Most treatments were appeared rapid decay and degeneration as soften and covered with molds on surface from the early days of experiment. However, MHA treatments showed any change until 20 days of storage. In terms of pH and $NH_3-N$ contents, only MHA treatment showed a stable and low value. The other treatments including Control showed high values as time flowed or unstable states. In conclusion, when high moisture agricultural by-product was treated by over 5% of MHA, there was no significant physicochemical changes in long term preservation over 20 days at summer season.
This experiment was carried out to evaluate supplemental effects of various preservatives to preserve the Brewers grain and Soymilk from decay and degeneration. The NaCl, organic acid(Ca-propionate), microbial fermenter(H/MF inoculant), and methionine hydroxy analogue(MHA) were used as additives in order to compare preservability of brewers grain and soymilk by-product during 20 days at July to August. Most treatments were appeared rapid decay and degeneration as soften and covered with molds on surface from the early days of experiment. However, MHA treatments showed any change until 20 days of storage. In terms of pH and $NH_3-N$ contents, only MHA treatment showed a stable and low value. The other treatments including Control showed high values as time flowed or unstable states. In conclusion, when high moisture agricultural by-product was treated by over 5% of MHA, there was no significant physicochemical changes in long term preservation over 20 days at summer season.
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