【客户文章】2019-Journal of Cleaner Production-家庭规模青贮槽内柑橘废弃物再利用的微生物与青贮

  • 2019-11-04 10:20:07
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英文题目:The correlations and spatial characteristics of microbiome and silage

quality by reusing of citrus waste in a family-scale bunker silo

中文题目:家庭规模青贮槽内柑橘废弃物再利用微生物与青贮品质的相关性及空间特性

期刊名:Journal of Cleaner Production 发表时间:2019.04.11 IF6。395

相关产品:多样性

测序平台:Illumina Miseq

样品来源:柑橘废弃物

英文摘要:

Untreated agricultural waste results in significant environmental pollution and reduces economic efficiency in The Three Gorges Reservoir Region. Ensiling is a method used to improve biowaste-to-resource systems and enhance the efficiency of resource recycling. Nutrient-rich citrus waste are suitable raw material for ensiling in China, but unsuitable for large-scale ensiling. In this study, citrus waste and other agricultural by-products were used to ensile as livestock feed in a family-scale silo. Spatial variation in microbiome composition and silage quality was analyzed in the bunker silo。 From the top to the bottom of the silo, the crude protein, crude fiber, and pectin contents all increased, while the loss rate of dry matter decreased, indicating that the silage quality was better in the lower section of the silo. Spatial variation in temperature, pH, and moisture significantly influenced silage quality by influencing the composition of the microbiome。 Undesirable Enterobacteriaceae and Trichocomaceae were replaced by Lactobacillus, Saccharomycetaceae, Sphingobium, and Pediococcus during ensiling. Proteolysis was mainly due to the decomposition of crude protein and further hydrolysis of soluble protein by Sphingobium, Brevundimonas, and fungi。 Crude fiber and pectin were primarily degraded by unclassified_o_Saccharomycetales and norank_o_Eurotiales. The pH of the silage decreased from the top to the bottom of the silo as well from the outside to the center, which is attributed to the presence of Lactobacillus and Pediococcus. More homofermentative lactic acid bacteria should be added to raw materials that are positioned higher in the bunker silo to improve silage quality. The reuse of agricultural waste as silage in Changshou Agricultural Park of the Three Gorges Reservoir Region could result in increase in annual profits of $8,282。50 USD; however, the waste handling expenses totaled $8,416。00 USD。 The application of this BTR method will reduce the shortage of fermented feed and result in significant economic benefits.

摘要翻译:

未经处理的农业废弃物对三峡库区造成了严重的环境污染,降低了经济效益。青贮是一种用于改善生物废弃物资源化系统提高资源回收效率的方法。柑橘废弃物营养丰富,是我国适宜的青贮原料,但不宜大规模青贮。在本研究中,柑橘废弃物和其他农业副产品在一个家庭规模的青贮内进行青贮用作家畜饲料。分析了青贮内微生物群落组成和青贮饲料品质的空间变化。从仓顶到仓底,粗蛋白、粗纤维、果胶含量均有所增加,干物质损失率有所下降,说明青贮底段青贮品质较好。温度、pH值和水分的空间变化对青贮饲料质量有显著影响,主要是通过影响微生物的组成来实现的。青贮过程中,LactobacillusSaccharomycetaceaeSphingobiumPediococcus取代了不好EnterobacteriaceaeTrichocomaceae。蛋白质水解主要是通过SphingobiumBrevundimonas和真菌对粗蛋白进行分解和可溶性蛋白的进一步水解。粗纤维和果胶主要通过unclassified_o_Saccharomycetalesnorank_o_Eurotiales进行降解。青贮饲料的pH值从仓顶到仓底,从仓外到仓中心呈下降趋势,这与LactobacillusPediococcus的存在有关。为了提高青贮饲料的质量,青贮中位于较高位置的原料添加更多的均质发酵乳酸菌。三峡库区长寿县农业园区将农业废弃物作为青贮饲料进行再利用,可实现年利润8282.50美元的增长;然而,废物处理费用总计为8416.00美元。该生物废物资源化方法的应用将减少发酵饲料的短缺,获得显著的经济效益。


参考文献:

Zhou Y M, Chen Y P, Guo J S, et al。 The correlations and spatial characteristics of microbiome and silage quality by reusing of citrus waste in a family-scale bunker silo[J]. Journal of Cleaner Production, 2019, 226: 407-418.

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