- 期刊
耐高溫油脂分解微生物應用於廚餘堆肥之製作及其堆肥成熟度之評估
Application of Thermo-tolerant Fat-decomposing Microbes for Producing Food Waste Compost and Assessment of the Compost Maturity
摘要
目前台灣廚餘回收後製作堆肥的問題之一為其油脂含量常太高，故本研究之主要目的為評估所篩選之耐高溫油脂分解微生物應用於廚餘堆肥製作之可行性及其對堆肥之成熟度之影響。結果顯示，接種耐高溫油脂分解微生物可增進廚餘堆肥化期間之微生物活性並促進有機質之分解。接種耐高溫油脂分解微生物A31、B61、SH168與V8菌株者，可顯著降低廚餘堆肥中之粗脂肪含量達98.8至135 g kg^(-1)（降低百分率93.9至98.6%）及縮短堆肥成熟之時間1至2週。本研究整合粗脂肪降低量、CO_2產生量、種子發芽率及中溫與耐高溫油脂分解微生物數量等5項之評估結果顯示，耐高溫油脂分解微生物A31菌株為應用於廚餘堆肥製作上最佳可行之微生物，並可以種子發芽率評估其堆肥之成熟度。
並列摘要
One of the main problems of food waste compost suitable for plant growth in Taiwan is generally its high fat content. The objectives of this study were to assess the feasibility of application of screened thermo-tolerant fat-decomposing microbes for producing food waste compost and to evaluate the compost maturity. The results showed that inoculation of food wastes with thermo-tolerant fat-decomposing microbes increased the microbial activities and enhanced decompositions of organic matter during food waste composting. The inoculated strains of A31, B61, SH168, and V8 efficiently reduced the crude fat contents of 98.8-135 g kg^(-1) (reducing rates of 93.9-98.6%) and the maturation (seed germination rate ＞ 90%) time of food waste composts for 1-2 weeks. The integrated assessment of reduction of crude fat content, CO^2 evolution, seed germination rate, and populations of mesophilic and thermo-tolerant fat-decomposing microbes showed that the strain A31 was the most feasible for application on food waste composting. In addition, the maturity of food waste compost can be assessed by seed germination rate.