甘蔗糖蜜酒精废液浓缩液提取蛋白质的研究

本文研究了从糖蜜酒精废液浓缩液回收蛋白质的方法,旨在实现废液的资源化利用.通过有机溶剂沉淀和等电点沉淀法提取蛋白质,试验结果表明:在乙醇浓度80%,乙醇用量40mL/20g,浸取温度50℃,提取时间60min,pH4.0的条件下,分离的蛋白质得率为30.38%,蛋白质含量为75.3%.所得蛋白质的各项理化指标均达到国家饲料卫生标准,有良好的开发前景.     

壳聚糖在糖蜜酒精废液处理中的应用

以壳聚糖作絮凝剂处理高浓度糖蜜酒精废液，考察了pH值、温度、搅拌时间、壳聚糖用量及助凝剂用量等对废液CODcr去除率的影响，结果表明，当pH为7.0、温度为25℃，搅拌时间为30min，静置时间2h，配合助凝剂P30的有效作用，能使糖蜜酒精废液的CODcr去除率达到96.2%。     

阳离子交换树脂分离糖蜜酒精废液中钾初探

针对糖蜜酒精废液的综合治理问题,提出了强酸型阳离子交换树脂从糖密酒精废液中提钾的新思路。在实验室条件下初步探索了影响吸附,解吸效果的诸因素。结果表明,糖蜜酒 液上柱最佳流速为３６０ｍｌ／ｈｒ,最佳吸附温度为常温,洗脱液最佳浓度４．３ｍｏｌ／ｌ,最佳洗脱温度为３５℃。     

吸附法处理糖蜜酒精废液技术研究

文本介绍处理糖蜜酒精废液的一种新技术，该技术与以往的浓缩制肥技术相比，投资者，见效快，有推广前景。     

利用糖蜜酒精废液生产液态生物有机肥

阐述了我国现阶段利用糖蜜酒精废液生产液态生物有机肥研究概况和技术方法。在目前甘蔗直接喷灌糖蜜酒精废液的基础上,介绍了一种甘蔗糖蜜酒精废液生产液态生物有机肥的资源化综合利用的工艺技术路线和生产方法,为广西酒精生产企业实现废水COD减排任务开辟了一条新路径。     

糖蜜酒精废液生产酒石酸钾钠过程中的固液分离研究

针对糖蜜酒精废液的综合治理问题,提出了用糖蜜酒精废液中的酒石经碱化处理生产酒石酸钾钠的新思路,并就生产过程中的重要环节－－固体残渣的分离进行了初步探讨,了解碱浓度、碱种类、温度、絮凝剂浓度、搅拌时间对固液分离的影响。结果表明,固液分离的最佳条件为：碱浓度３０ｇ／ｌ,碱配比ＮａＯＨ：ＮａＣＯ３＝１：２,温度５０℃,絮凝剂浓度０．０９ｇ／ｌ,搅拌时间２０ｍｉｎ。     

糖蜜酒精废液处理的探讨

采用以蒸发浓缩为主,资源制肥和雾化燃烧为辅的酒精废液治理方案,实现了达标排放,经济运行。     

糖蜜酒精废液生产生态复合菌肥的应用

采用选择培养法从自然界中分离筛选出固氮、解磷、促长等4组土壤微生物有益菌群,并利用它们之间的互生关系,以糖蜜酒精废液为主要基质,限定性混合发酵,研制出高效生态复合菌肥。经在甘蔗、水稻、蔬菜等农作物田间小区试验和在广东、广西、海南等地大面积田间推广应用,效果良好。小区试验结果表明:可用其对水配成合适的稀释液对作物进行浸种、喷施、根施,施用量50～80kg/hm2与对照比较,减少施用化肥20%,甘蔗、水稻、蔬菜分别增加产量7.71%、14.00%、20%～40%;以其0.1%的量接种秸秆堆肥,与传统堆肥比较具有显著加快腐熟和增加肥效的作用。     

旱地甘蔗灌施糖蜜酒精废液示范试验总结

介绍了糖蜜酒精废液灌施甘蔗的试验情况，试验表明，甘蔗灌施糖蜜酒精废液不但能获得与常规的施肥管理方法同样效果的较高的甘蔗产量，同时还能降低甘蔗生产成本。     

甘蔗糖蜜酒精生产固定化酵母体结垢问题探讨

1问题提出在我国甘蔗糖蜜酒精生产中,已经广泛采用固定化酵母载体连续发酵。同传统酒精发酵工艺相比,固定化酵母具有发酵周期短、设备利用率高、杂菌感染少、发酵率高、生产成本低等优点。但是近几年,许多厂蒸馏塔内结垢现象较为严重,固定化酵母载体也经常被一层灰份完全包住,使载体中固定的酵母细胞无法进入发酵液中,发酵罐中酵母数会随着发酵液的流动而不断减少,导致发酵含酒分降低,残糖升高,发酵率降低,     

甘蔗施用糖厂酒精废液的肥效试验研究

通过一个主试验和多点表证示范研究甘蔗施用糖厂酒精废液的肥料效应.结果表明,糖厂酒精废液中的养分对甘蔗有一定的增产增糖作用,但是产量差异未达显著水平;地膜覆盖比施酒精废液增产作用大,经济效益好.     

用糖蜜生产酒精如何减少蒸馏塔积垢

近年不少以糖蜜为原料生产酒精的蒸馏塔出现积垢很多，有时甚至阻塞，致使停止蒸馏洗塔；有些厂为了避免或减少频繁洗塔而采用“无酸发酵”。本来加酸主要目的是调节酵母生长和发酵的适宜pH值（pH4左右，越偏中性，产甘油越多），另一目的是抑制染菌，（因为细菌适宜繁殖的条件是中性和温度超过35℃）另外还起到凝聚胶体物，降低糖蜜粘度等作用。     

对制定甘蔗糖蜜企业标准的几点意见

对制定糖蜜企业标准的质量指标、实验方法提出具体意见，并对如何正确处理企业标准与国家、行业、地方标准的关系和兼顾企业生产实际进行讨论。     

Antifungal activity of liquid waste obtained from the detoxification of steam-exploded plant biomass against plant pathogenic fungi

The antifungal activity of steam-exploded liquid waste (SELW) produced by the detoxification of steam-exploded biomass of Miscanthus sinensis, Arundo donax and wheat straw for 2nd generation industrial bioethanol production was studied against plant pathogenic fungi for the first time. Quantification of fermentation inhibitors (2-furaldehyde, 5-hydroxymethylfurfural, acetic and formic acid) was carried out by standard methods. Mycelial growth inhibition and conidial germination of eight fungal strains [Alternaria alternata, Botrytis cinerea, Colletotrichum acutatum, Cladosporium fulvum, Fusarium oxysporum f. sp. lycopersici (FOL), F. oxysporum f. sp. melonis (FOM), F. solani f. sp. pisi and Verticillium dahliae] were evaluated in vitro at different dilution rates (1:2, 1:4 and 1:8) for each SELW. Disease suppressiveness was assessed in vivo in eight horticultural pathosystems (A. alternata/tomato, B. cinerea/tomato, C. acutatum/strawberry, C. fulvum/tomato, FOL/tomato, FOM/melon, F. solani f. sp. pisi/pea and V. dahliae/eggplant) under greenhouse conditions. Pathogen suppression by each SELW, applied both in spray form on to tomato leaves and skins of tomato and strawberry, and by means of dipping method in watering suspensions on to seedling root systems of tomato, melon, pea and eggplant, was evaluated at dilution rates of 1:2, 1:4 and 1:8 using irrigation water during curative and preventive treatments. Investigations carried out in vitro showed that M. sinensis SELW was more suppressive than wheat straw SELW, and A. donax SELW was less suppressive than wheat straw SELW at the lowest dilution rates. Relationships between the concentration of 2-furaldehyde, acetic and formic acid present in SELWs and their antifungal effect were found. Moreover, B. cinerea, C. fulvum, V. dahliae, A. alternata, C. acutatum and F. solani f. sp. pisi were more effectively inhibited than FOL and FOM. Investigations performed in vivo showed that SELWs of M. sinensis and wheat straw can be diluted at a 1:2 rate and used for controlling six fungal diseases during preventive treatments. In particular, they can be used by dipping of the root systems during transplanting in the case of F. solani f. sp. pisi/pea and V. dahliae/eggplant; on the other hand, they can be nebulized on to the leaves and fruits before symptoms appearance in the case of A. alternata/tomato, B. cinerea/tomato, C. acutatum/strawberry and C. fulvum/tomato. This study is of particular interest because it points out how these SELWs could be employed in horticultural crop protection in Southern Italy, thereby making it possible to effectively combine industrial production of 2nd generation biofuels with sustainable horticulture under greenhouse conditions.     

对甘蔗糖蜜行业标准的研究分析与修改意见

通过对甘蔗糖蜜行业标准进行系统的研究分析,提出了标准中存在的问题和修改意见,以及如何正确执行标准的建议.     

涉农高校科技管理创新研究

针对涉农高校的科研实际,分析涉农高校科技管理上的不同点,指出及存在的主要问题,提出涉农高校科技管理创新的具体体现和关键措施。