共查询到19条相似文献,搜索用时 62 毫秒
1.
2.
从啤酒糟中提取水溶性膳食纤维的研究 总被引:1,自引:0,他引:1
探讨了采用碱法和酶解法提取啤酒糟中水溶性膳食纤维的工艺条件.结果表明,在化学法的最佳条件下,SDF得率为13.37%;在酶法的最佳条件下,SDF得率为4.94%.化学法提取的SDF,颜色较深,为焦糖色;酶法的提取的SDF,颜色较浅,为黄色. 相似文献
3.
4.
5.
6.
7.
8.
啤酒糟中可溶性膳食纤维的提取及化学组成 总被引:2,自引:0,他引:2
啤酒糟干基中含有58.7%的膳食纤维、23.0%的可溶性膳食纤维(SDF)、13.6%的可溶性戊聚糖及30.4%的β-葡聚糖,用乙醇沉淀和酶解蛋白质及淀粉可提取16.5%(w/w,db)的SDF。加入蛋白酶和淀粉酶,以及增加提取溶液的温度,均可增加SDF的提取率。木糖和阿拉伯糖是组成SDF的主要单糖,各占60.44%和34.45%,阿木糖比值为0.57。提取的SDF中还含有12.01%的β-葡聚糖、1.16%甘露糖和3.35%半乳糖。 相似文献
9.
10.
啤酒糟中可溶性膳食纤维的提取及化学组成 总被引:1,自引:0,他引:1
啤洒糟干基中含有58.7%的膳食纤维、23.0%的可溶性膳食纤维(SDF)、13.6%的可溶性戊聚糖及30.4%的β-葡聚糖。用乙醇沉淀和酶解蛋白质及淀粉可提取16.5%(db)的SDF。加入蛋白酶和淀粉酶,以及增加提取溶液的温度,均可增加SDF的提取率。木糖和阿拉伯糖是组成SDF的主要单糖,各占60.44%和34.45%,阿木糖比值为0.57。提取的SDF中含有12.01%的β-葡聚糖、1.16%甘露糖和3.35%半乳糖。 相似文献
11.
以啤酒糟为原料,提取可溶性膳食纤维,后者与脱脂乳混合,接入浮酸菌发酵。经调配、均质等工艺,制成乳酸发酵纤维饮料。综合利用啤酒加工下脚料,既节约,又环保。 相似文献
12.
啤酒糟膳食纤维饮料的研制 总被引:8,自引:1,他引:8
以啤酒糟为原料提取可溶性膳食纤维与脱脂轧混合,接入乳酸菌发酵。经调配、均质等工艺过程,制成一种功能性乳酸发酵纤维饮料,为啤酒精的开发利用提供了一条新的有效途径。 相似文献
13.
14.
15.
Yuzo Mizukami Mitsuru Yoshida Hiroshi Ono 《Food additives & contaminants. Part A, Chemistry, analysis, control, exposure & risk assessment》2016,33(2):225-235
This paper investigated acrylamide elution from roasted barley grain into mugicha and its formation during roasting of the grain. Mugicha is an infusion of roasted barley grains. Highly water-soluble acrylamide was easily extracted to mugicha from milled roasted barley grains in teabags. On the other hand, the acrylamide concentration in mugicha prepared from loose grain increased with longer simmering and steeping times. During roasting in a drum roaster, the acrylamide concentration of the grain increased as the surface temperature rose, reaching a maximum at 180–240°C. Above this temperature, the acrylamide concentration decreased with continued roasting, exhibiting an inverted ‘U’-shaped curve. For most of the samples, the acrylamide concentration showed good correlation with the value of the colour space parameter L*. The dark-coloured roasted barley grains with lower L* values contained lower amounts of acrylamide as a result of deep roasting. The level of asparagine in barley grains was found to be a significant factor related to acrylamide formation in roasted barley products. The data are an important contribution to the mitigation of acrylamide intake from mugicha. 相似文献
16.
17.
18.
19.
Dried distillers grains with solubles (DDGS) has been commonly used as a dietary protein source for lactating dairy cows. However, there is a paucity of data evaluating the use of DDGS as a partial replacement of forage or grain. The objective of this study was to determine the effects of partially replacing barley silage or barley grain with corn/wheat-based DDGS on dry matter intake (DMI), chewing activity, rumen fermentation, and milk production. Six ruminally cannulated lactating Holstein cows were used in a replicated 3 × 3 Latin square design with 21-d periods. Cows were fed the control diet (CON: 45% barley silage, 5% alfalfa hay, and 50% concentrate mix), a low forage (LF) diet or a low grain (LG) diet, in which barley silage or barley grain was replaced by DDGS at 20% of dietary dry matter, respectively. All diets were formulated to contain 18% crude protein and fed as total mixed rations. Compared with CON, cows fed the LF diet had greater DMI (26.0 vs. 22.4 kg/d), yields of milk (36.4 vs. 33.0 kg/d), milk protein (1.18 vs. 1.05 kg/d), and milk lactose (1.63 vs. 1.46 kg/d), but milk fat yield was not affected. The LF diet decreased chewing time compared with the CON diet (29.7 vs. 39.1 min/kg of DMI), but did not affect rumen pH and duration of rumen pH below 5.8. Compared with CON, feeding the LG diet tended to increase minimum and maximum rumen pH, but did not affect DMI, milk yield, and milk composition in this study. These results indicate that a partial replacement of barley silage with DDGS can improve the productivity of lactating dairy cows without negatively affecting rumen fermentation and milk fat production. Barley grain can also be partially replaced by DDGS in diets for lactating dairy cows without causing negative effects on productivity. 相似文献