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大豆蛋白产品的制取,功能,营养价值及用途 总被引:2,自引:1,他引:1
(一)美国大豆的生产 世界人口不断增长,各国有关人士深感蛋白的缺乏,而大豆不仅含有16—22%的大豆油而且还含有40%营养价值高的大豆蛋白质。为了满足全世界人类日益增长的蛋白质需要,增产大豆满足蛋白质的需要是比较好的途径之一,因为一公顷土地如用于草喂牛,从牛肉中只能得到蛋白质26公斤,如种小麦可得蛋白质82公斤,种玉米得蛋白质147公斤,如种大豆可得蛋白质227公斤,还有一资料说一英亩的土地种了草喂牛所得蛋白质可以供一个成人生活77天,如果种了大豆所生产的蛋白质可供一个成人生活2224天,由此可见种植大豆是提供蛋白质的一个可靠来源。 相似文献
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美国科学家首次成功培育过敏性低大豆品种 总被引:2,自引:0,他引:2
<正> 大豆可用于生产产品的范围很广,从油墨、生物燃油到婴儿食品,但并不是所有的人都适宜食用大豆,全世界有6~8%儿童和1~2%成人患有食物过敏症。大豆是8种可能导致过敏症的主要食物之一,其它7种食物是鸡蛋、牛奶、花生、小麦、鱼、水生贝壳类动物和树生坚果。对大豆过敏的人必须避免食用含有大豆蛋白的食物。 相似文献
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正大豆包括黄豆、黑豆和青豆等,而我国大豆制品达上百种,通常分为非发酵豆制品和发酵豆制品,非发酵豆制品有豆浆、豆腐、豆腐干、豆腐丝、豆腐脑、豆腐皮和香干等,发酵豆制品有腐乳、豆豉等。我国以植物性食物为主,成人蛋白质建议摄入量约为1.0g/(kg.d),大豆及其部分制品是我国居民膳食中优质蛋白质的重要来源,为保证膳食蛋白质的质量,一般要求动物蛋白质和大豆蛋白质应占膳食蛋白质总量的30%~50%,以 相似文献
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烟草叶部病害种类繁多,病理复杂,严重影响烟草产量及品质,烟草病害精准检测是烟草病害及时防治的前提。传统检测方式精准性差、效率低,基于深度学习的算法可提高烟草病害检测准确性。本文以5种较为常见的烟草病害(普通花叶病、黄瓜花叶病毒病、赤星病、烟草野火病、气候性斑点病)为研究对象,构建基于YOLOv3的烟草病害检测模型,实现烟草多类病害的精准快速检测。使用Darknet53特征网络提取烟叶病害特征并将不同尺度病害特征融合,并用K-means++算法对融合后特征进行分类和位置预测,通过非极大值抑制算法(NMS)去除冗余框,得到病害区域预测框。用田间实际采集的烟草病害数据集,对构建的YOLOv3病害检测模型与SSD(Single Shot multibox Detector)模型对比测试。结果表明,YOLOv3的mIoU为0.81,明显优于SSD的0.73,且YOLOv3模型的mAP为0.77,也高于SSD的0.69。本研究构建的YOLOv3烟草病害检测模型能有效定位烟叶病害区域,实现多类烟草病害的检测,为精准病害防治提供参考。 相似文献
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A qualitative risk assessment was undertaken to analyze the likelihood of hypodermosis incursion into Switzerland via imported game from Hungary and the potential impacts on disease control.in deer and cattle. The assessment considered the role of disease in the exporting and importing country, trade, possible exposure ways and training of Swiss hunters and deer farmers in disease detection. It was concluded that the risk of hypodermosis incursion into Switzerland can be considered negligible and no impact on disease control is given. The risk of introducing other diseases i.e. tuberculosis via game meat posed the highest risk. 相似文献
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De Gaulle I. Chigbu 《Contact lens & anterior eye》2009,32(1):3-15
Allergic eye disease is an abnormal immune hypersensitivity response to allergens. It is characterized by IgE-mediated and/or T-lymphocyte-mediated immune hypersensitivity reactions that lead to an immune response, resulting in the clinical manifestations of ocular allergy. This review will focus on immunopathophysiology of the different types of allergic eye disease commonly encountered in the primary care setting. The objective is to provide the clinician with a considerable understanding of the immunopathogenesis of allergic eye disease. The primary focus of this review will be on the antibody- and cell-mediated immune hypersensitivity reactions relevant to allergic eye disease, the different phases of ocular allergic immune response and the histopathological manifestations of these commonly encountered ocular allergies. The basic concepts of immunology with emphasis on adaptive immunity and lymphocyte activation, as well as the components of the immune system that are relevant to ocular allergy will also be reviewed. 相似文献