排序方式: 共有89条查询结果,搜索用时 15 毫秒
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以马铃薯雪花全粉、鸡油菌多糖溶液、高筋面粉为主要原料制备马铃薯保健面包,优化了马铃薯保健面包的制备工艺条件,并以普通马铃薯面包为对照,分析了二者质构参数、保水性、膳食纤维和蛋白质含量的差异.结果表明,马铃薯保健面包的最佳工艺条件为鸡油菌多糖溶液添加量15%,发酵时间2.0 h,烘烤温度200℃,烘烤时间21 min;马... 相似文献
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Daya Goburdhun Padmini Seebun Arvind Ruggoo 《International Journal of Consumer Studies》2000,24(4):223-233
The type of products may affect the quality of oil during deep‐fat frying. The quality changes in pure soybean oil during frying of potato chips and chicken drumsticks were evaluated and compared. The oil was subjected to continuous frying at 180°C for a period of 315 min. The parameters used to assess the oil quality were peroxide value (PV), iodine value (IV), free fatty acids (FFA), refractive index (RI) and colour. The percentage of oil absorbed by the two products was determined. The oil was also assessed visually for any change in colour, viscosity, turbidity, flavour and deposit. Results showed that, for both products, PV, IV, FFA, RI and colour changed significantly with time (P < 0.05). Potato absorbed oil during frying (6.9%), whereas chicken released fat into the frying medium (2.4%). When the rates of change of the various parameters in the oils were compared for the two products, significant differences (P < 0.05) were noted for PV and colour only. The oil used during the frying of chicken appeared visually to be at a more advanced stage of deterioration. 相似文献
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采用乙醇浸提法提取红薯茎叶中的黄酮,在前期单因素研究基础上,进行正交设计试验,得出乙醇浸提法提取红薯茎叶中黄酮的最佳工艺条件:乙醇浓度80%、提取时间3 h、提取温度70℃、料液比1∶40,在该条件下黄酮的提取率为0.831 6%。 相似文献
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采用絮凝沉淀法去除马铃薯淀粉废水中的蛋白质。经过方案比选.最终选择聚丙烯酰胺作为絮凝剂,结果表明:在聚丙烯酰胺投加量为70mg/L,pH值为5,温度为20℃,反应时间40min的最佳工艺条件下。采用聚丙烯酰胺絮凝沉淀法对马铃薯淀粉加工废水中的COD、蛋白质、BOD、SS都有一定的去除效果。COD的去除率保持在30%~40%,蛋白质的去除率保持在45%~55%,BOD的去除率保持在10%-15%.SS的去除率保持在50%-60%,大大减轻了后续处理构筑物的负担。 相似文献
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基于流通环节的黑龙江省马铃薯产业现状与发展对策 总被引:1,自引:0,他引:1
目前,在交通运输和信息基础设施等方面,黑龙江省具备了发展农产品物流的基础条件,黑龙江省的马铃薯加工企业和市场体系建设取得了一定发展。但是,黑龙江省的马铃薯产业在流通环节也面临一些亟待的问题,尤其是在贮藏和运输设施、批发市场和集贸市场、流通组织,市场信息网络建设、品牌建设,行业标准与法规建设等方面急待加快发展。 相似文献
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目的 研究面向创新型农业保险业务中缺少及时准确的第三方作物产量结果用于灾损理赔的问题。引入多源卫星遥感测产技术,识别测产关键因子,构建产量模型。方法 文章运用多元线性回归分析方法,选取山西省马铃薯主产县岚县为研究区,计算基于Sentinel2影像的植被指数,结合气象卫星数据与实测单产数据,筛选关键因子,建立马铃薯单产遥感测产经验模型。结果 采用GF-2影像分割与Sentinel2长势时序识别岚县马铃薯种植面积为8 477.65hm2,精度检验Kappa值为0.72。保险公司岚县承保马铃薯面积2 476.37hm2,承保覆盖率为29.21%。测产结果显示,马铃薯单产与区域关键期地表温度参数相关性较好,岚县遥感测产获得平均单产为13.76 t/hm2,实地测产获得平均单产为14.06 t/hm2,误差百分比为2.13%,分乡镇平均误差百分比为22.97%,基本满足理赔业务需求。在2018年保险期结束后一周内,保险公司启动快速赔付,支付赔款125.29万元,赔付率48.46%。结论 遥感测产具有大范围、时效性好、可靠性高等特点,能够迅速为创新型保险产品提供测产理赔结果,提高理赔效率,保障农民收入。 相似文献
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马铃薯是定西市的优势产业,也是特色产业。近年来,一带一路的发展增加了定西市马铃薯进入市场的渠道,但是与国内具有良好马铃薯资源条件的内蒙、贵州等生产区域之间仍然存在着差距和竞争。在借鉴已有研究成果的基础上,以定西市马铃薯的产业为研究对象,运用波特的钻石模型即从需求条件、同业竞争、要素条件、相关和支持产业以及机会和政府等对定西市马铃薯产业竞争力的影响,找到提高定西市马铃薯产业竞争力的途径。 相似文献
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In 2016, second-generation genetically modified (GM) potatoes were approved for production and sale in Canada. In this study, we analyze how consumer acceptance of GM potatoes may be affected by various factors, including the trait introduced (i.e., the product benefits), the type of breeding technology used, and the developer of the potato using any technology. We conduct an online survey and use a stated choice experiment to collect data on consumer acceptance of GM and other potatoes in Canada. Random utility models are used to analyze the economic value consumers place on the various attributes of the potatoes. Our results show that consumers are willing to pay more for a health attribute (reduced acrylamide produced when potatoes are fried) and an environmental attribute. Respondents in general need to face discounted prices to buy potatoes created by either gene editing or GM (either transgenic or cisgenic/intragenic) technologies. However, consumers are in general more accepting of the gene editing technology than the GM technologies. Our results also show that government is the most preferred developer of the potatoes, regardless of technology. Results from this study can help guide public and private management of the introduction of new foods when the products are developed with unpopular technologies. 相似文献
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随着社会的进步和农村经济的发展,农业生产效率已成为制约农民收入、造成农村落后的关键因素。中国是马铃薯的生产大国,其生产效率的提高对我国马铃薯产业的持续发展和保障我国的粮食安全有着很重要的意义。研究基于2014年对甘肃省定西市样本农户马铃薯种植的调查数据,采用DEA模型测算农户种植马铃薯的生产效率,并利用Tobit模型对影响马铃薯生产效率的因素进行分析。研究表明:农户生产马铃薯的综合技术效率较低,规模效率成为制约其生产效率提升的瓶颈;家庭纯收入、马铃薯的种植比例和引进新品种3个变量在0.01水平下对生产效率的影响达到显著;户主的年纪在0.05水平下对生产效率的影响达到显著;马铃薯的收购价格、农户是否参加合作社和种植培训、离农贸市场距离与马铃薯的生产效率间存在不显著的正相关关系。基于以上调研提出了鼓励土地流转、提高生产技术水平、加大农民生产技能培训力度、多方面增加农民收入和合理布局农产品贸易市场等政策性建议。 相似文献