共查询到18条相似文献,搜索用时 187 毫秒
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马铃薯微孔淀粉的制备及吸附性能研究 总被引:1,自引:0,他引:1
用淀粉糖化酶、α-淀粉酶及普鲁兰酶水解马铃薯淀粉制备一种具有吸附功能的马铃薯微孔淀粉载体。研究表明,淀粉糖化酶对马铃薯淀粉作用力最强,糖化酶水解淀粉制备马铃薯微孔淀粉的最佳工艺条件是:温度45℃,pH值4,酶用量为1%,时间24h。微孔淀粉对色素、水溶性维生素、油脂的吸附能力高于原淀粉。 相似文献
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IC反应器处理马铃薯淀粉生产废水的试验研究 总被引:5,自引:1,他引:4
试验采用超滤-IC反应器-MBR工艺处理马铃薯淀粉生产废水,重点研究了IC反应器处理马铃薯淀粉废水的工艺参数。结果表明,在常温下,当进水COD的质量浓度为6000~9000mg/L、HRT为5h、容积负荷为23.62kg[COD]/(m3·d)时,IC反应器对COD的去除率为91.43%。采用该工艺处理马铃薯淀粉生产废水完全可以达到废水回用的目的。 相似文献
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马铃薯羧甲基淀粉的制备及结构分析 总被引:4,自引:0,他引:4
羧甲基淀粉是重要的变性淀粉之一,用途广泛。本文以马铃薯淀粉为原料,用乙醇溶剂法制备了马铃薯羧甲基淀粉钠,研究了氯乙酸、氢氧化钠、反应时间、反应温度、乙醇浓度、乙醇溶液体积等因素对反应的影响。以粘度为目标,用正交实验方法确定了最佳工艺条件。 相似文献
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以马铃薯淀粉为原料,利用酶制剂制备高麦芽糖浆,采用正交实验法,对马铃薯淀粉的液化过程的影响因素进行了详细研究,得到液化工艺的最佳条件为:淀粉浆浓度40%、耐高温α-淀粉酶用量106U/g淀粉、液化温度94℃、液化时间10min,所得液化液的糖化率(DE值)为9.79%。研究结果为马铃薯高麦芽糖浆的制备奠定了理论基础。 相似文献
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燃料乙醇作为一种高效的液体燃料已在全世界范围推广使用。目前,广泛使用的干法制乙醇工艺已十分成熟。然而,生产过程更为简化、条件更为温和、可实现更高水平浓醪发酵的生料淀粉制乙醇工艺已成为燃料乙醇工业进一步迈向绿色减排、高效节能的重要发展方向。生料淀粉工艺经历了几十年实验室研究,并且也已在产业化方面有巨大发展。尤其以美国POET公司为代表,其BPX生淀粉水解专利技术已在24套燃料乙醇工业装置上得到应用。综述了生料淀粉工艺研究进展,并对已经产业化的案例作了介绍。开发具有自主知识产权的生料淀粉制乙醇工艺、关键技术及装备也是我国未来燃料乙醇产业发展的一个重要方向。 相似文献
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文章分析了贵州某马铃薯淀粉生产企业的废水特点、处理工艺及处理效果。文中采用UASB+生物接触氧化法处理淀粉废水,工程实践表明,在常温条件下,当原水CODCr在5000~6000 mg/L之间,进水容积负荷到达5 kg/(m3·d)左右时,本工艺处理效果稳定,出水能够达到污水综合排放一级标准。该工艺操作简单,管理方便,并能够获得较好的经济效益,节省运行成本。 相似文献
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Ruiqing Lyu Sulaiman Ahmed Weijuan Fan Jun Yang Xiaoyun Wu Wenzhi Zhou Peng Zhang Ling Yuan Hongxia Wang 《International journal of molecular sciences》2021,22(17)
Sweet potato (Ipomoea batatas) is one of the largest food crops in the world. Due to its abundance of starch, sweet potato is a valuable ingredient in food derivatives, dietary supplements, and industrial raw materials. In addition, due to its ability to adapt to a wide range of harsh climate and soil conditions, sweet potato is a crop that copes well with the environmental stresses caused by climate change. However, due to the complexity of the sweet potato genome and the long breeding cycle, our ability to modify sweet potato starch is limited. In this review, we cover the recent development in sweet potato breeding, understanding of starch properties, and the progress in sweet potato genomics. We describe the applicational values of sweet potato starch in food, industrial products, and biofuel, in addition to the effects of starch properties in different industrial applications. We also explore the possibility of manipulating starch properties through biotechnological means, such as the CRISPR/Cas-based genome editing. The ability to target the genome with precision provides new opportunities for reducing breeding time, increasing yield, and optimizing the starch properties of sweet potatoes. 相似文献
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以双氧水和亚铁离子为氧化剂与改性粉煤灰处理马铃薯淀粉废水,考察了不同浓度双氧水的加入量、绿化亚铁加入量、pH、反应时间及粉煤灰的加入量对COD去除率的影响。结果表明:在反应条件为15%双氧水投加量15 mL/L,0.2 mol/L绿化亚铁加入量30 mL/L,改性粉煤灰的用量50 g/L,pH 5.0,反应时间45 min时,COD去除率可达94%。 相似文献
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Katariina Rommi Jenni Rahikainen Jari Vartiainen Ulla Holopainen Panu Lahtinen Kaisu Honkapää Raija Lantto 《应用聚合物科学杂志》2016,133(5)
Potato peel mass is a costream produced in large quantities by the food industry. Its availability and the presence of starch (46%), pectin, and cellulose make it a potential renewable raw material for polymer products. In this study, biopolymer films were produced from potato peel mass and glycerol. High‐pressure homogenization (HPH) and HPH combined with heat treatment were investigated as pretreatment technologies before film casting. HPH‐treated potato peel mass yielded biopolymer films with similar barrier and mechanical properties as films prepared from pure potato starch, including complete impermeability to grease. Additional heat treatment of the peel mass enhanced starch gelatinization, resulting in improved barrier properties and smoother surface topography of the films. Films with similar appearance and quality were also obtained from starch‐free potato peel mass, indicating that potato fiber rich in pectin and cellulose is likewise a suitable material for biopolymer film preparation after HPH treatment. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016 , 133, 42862. 相似文献
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研究了纳米结晶纤维素(NCC)作为淀粉氧化助剂对马铃薯淀粉氧化的影响。通过测定氧化淀粉的羧基含量和黏度来表征NCC对淀粉氧化程度的影响,并通过分析淀粉氧化前后的红外光谱(FT-IR)、X射线衍射图谱(XRD)和扫描电镜(SEM)图片来表征NCC对氧化淀粉结构的影响。结果表明:次氯酸钠氧化马铃薯淀粉时,pH值9、温度45℃是氧化的最佳条件,添加一定量的NCC可以促进淀粉的氧化,同时淀粉的氧化程度随着有效氯用量的增加而升高。在此条件下,当NCC添加量为5%,有效氯用量为2.25%时,得到的氧化淀粉含羧基比相同条件下不添加NCC得到的提高了10.42%。 相似文献