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首页> 外文期刊>Cereal Chemistry >Selected Factors Affecting Crude Oil Analysis of Distillers Dried Grains with Solubles (DDGS) as Compared with Milled Corn
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Selected Factors Affecting Crude Oil Analysis of Distillers Dried Grains with Solubles (DDGS) as Compared with Milled Corn

机译:与蒸馏玉米相比,影响带蒸馏酒糟(DDGS)的酒糟分析的某些因素

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With increasing production of distillers dried grains with solubles (DDGS), both fuel ethanol and animal feed industries are demanding standardized protocols for characterizing quality. AOCS Approved Procedure (Am 5-04) was used for measuring crude oil content in milled corn and resulting DDGS. Selected factors, including sample type (milled corn, DDGS). sample origin (ethanol plant 1, 2, 3), sample particle size (original matrix, <0.71 mm. <0.50 mm mesh opening; the last two materials were obtained by grinding and sieving), solvent type (petroleum ether, hexane), extraction time (30, 60 min), and postextraction drying time (30, 60 min) were investigated by a complete factorial design. For milled corn, only sample origin and extraction time had significant effects (P < 0.05) on crude oil values measured, but for DDGS. besides those two factors, sample particle size, solvent type, and drying time also had significant effects. Among them, the particle size of DDGS had the most effect. On average, measured oil content in DDGS ranged from 11.11% (original matrix) to 12.12% (<0.71 mm) and to 12.55% (<0.50 mm). For measuring the crude oil content of DDGS, particle size reduction. 60 min of extraction. and 60 min of drying are recommended. Regardless of the underlining factors, the method was very repeatable (standard errors <0.05). The observed particle size effect on crude oil analysis of DOGS suggests the need for similar confirmations using other analytical methods,
机译:随着蒸馏器产量的增加,可溶谷物(DDGS)的生产,燃料乙醇和动物饲料行业都要求使用标准化协议来表征质量。 AOCS批准的程序(Am 5-04)用于测量磨碎玉米中的原油含量和所得DDGS。选定的因素,包括样品类型(磨玉米,DDGS)。样品来源(乙醇工厂1、2、3),样品粒度(原始基质,<0.71毫米,<0.50毫米筛孔;最后两种材料通过研磨和筛分获得),溶剂类型(石油醚,己烷),通过完全因子设计研究了萃取时间(30、60分钟)和萃取后干燥时间(30、60分钟)。对于磨碎的玉米,只有样品来源和提取时间对测得的原油值有显着影响(P <0.05),而对于DDGS。除了这两个因素,样品的粒径,溶剂类型和干燥时间也有重要影响。其中,DDGS的粒径影响最大。平均而言,DDGS中测得的含油量为11.11%(原始基质)至12.12%(<0.71毫米)和12.55%(<0.50毫米)。用于测量DDGS的原油含量,可减小粒径。提取60分钟。建议干燥60分钟。不管有哪些强调因素,该方法都具有很好的可重复性(标准误<0.05)。在DOGS原油分析中观察到的粒径影响表明需要使用其他分析方法进行类似的确认,

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