Preparation and Application of the Functional Films Made With Biomass Unused Resources
Preparation and Application of the Functional Films Made With Biomass Unused Resources
批准号:
16580277
负责人:
KOHATA Susumu
金额:
$1.6万
依托单位国家:
日本
项目类别:
Grant-in-Aid for Scientific Research (C)
财政年份:
2004
资助国家:
日本
项目状态:
已结题
起止时间:
2004 至 2005
中文摘要
壳聚糖-竹醋固定化薄膜:本研究的目的是以三种壳聚糖和一种竹醋液为原料,采用自然干燥的方法制备固定化薄膜。随着壳聚糖相对分子质量(100<;500<;1000)的增加,膜的厚度和强度增加(0.03-0.05 mm和35-80N),膜适合作为固定化介质。此外,膜不溶于水,但去除竹醋后可在土壤中降解。紫苏叶的新鲜度下降是由于高浓度的竹醋导致薄膜上的叶片颜色发生了变化。对一种空中坠落细菌的抑菌性能进行了阐明。用二氧化钛光催化剂涂覆薄膜是可行的,但薄膜强度低,导致薄膜变得柔软,特别是在与水接触后。在竹醋液中加入环糊精聚合物后,膜具有较强的结合亲和力,减少了竹醋液产生的异味。海藻酸固定化竹醋膜:同样,海藻酸和竹醋液也可以制得膜。该膜可溶于水。将该膜的复溶液涂抹在西兰花、大葱和萝卜叶的背面,表现出一定的杀虫效果,特别是对日本萝卜。研究了用复溶液清洗紫苏叶的保鲜效果,结果表明,紫苏叶的保鲜期比用水洗的保鲜期长20天。当用竹醋液(100倍稀释当量)液复溶培养的Sakaki植物时,植物活性被识别约1个月。因此,海藻酸固定化竹醋膜的复溶液可以再现竹醋液的性质。
英文摘要
A chitosan-bamboo-vinegar immobilization film : The aim of the study was to produce films by the natural drying method employing three chitosans and a bamboo-vinegar liquid. The thickness and strength of the films produced (0.03-0.05 mm and 35-80 N) increased with an increase in the molecular weight of chitosan (100<500<1000), with films found to be suitable for use as immobilization media In addition, films were insoluble in water, but could be degraded in soil after removal of the bamboo vinegar. Reduced leaf freshness of perilla leaves was indicated by a color change of the leaf on a film due to the high concentration of bamboo- vinegar. The antibacterial property of the film was clarified against an aerial fall bacteria. Coating the film with a titanium oxide photo-catalyst was possible, but film strength was low and resulted in the film becoming soft especially after contact with water. When a cyclodextrin polymer was added to the films, strong binding affinity was observed and the offensive odor of bamboo-vinegar liquid origin was reduced.An alginic-acid immobilization bamboo-vinegar film : Similarly, films could be produced from alginic acid and a bamboo-vinegar liquid. The film was soluble in water. Spreading the re-dissolution liquid of the film on the dorsal surface of broccoli, leek and Japanese radish leaves exhibited an insecticide effect, particularly in the case of Japanese radish. The potential for maintaining the freshness of perilla leaves was investigated by washing with re-dissolution liquid from films and freshness was maintained for 20 days longer than when leaves were washed with water. Plant activity was recognized for about 1 month when the plant Sakaki cultivated with re-dissolution (bamboo vinegar liquid 100 times dilution equivalency) liquid of a film. Thus, the re-dissolution liquid of an alginic acid immobilization bamboo-vinegar film can reproduce the property of bamboo-vinegar liquid.
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CREATION OF HYBRID RECYCLING MATERIALS REUSABLE ORGANISM RESOURCES AND PHOTOCATALYSIS
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批准号:12839019
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项目类别:Grant-in-Aid for Scientific Research (C)
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资助金额:$2.24万
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财政年份:2000
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负责人:KOHATA Susumu
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依托单位: