共查询到19条相似文献,搜索用时 62 毫秒
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我国首座二氧化碳气调储粮示范库于2002年12月在我库成功建成,经过两年多的二氧化碳气调储粮试验表明,在高大平房仓中用浓度70%~35%的 CO_2处理15天对几种储粮害虫的各种虫态的防治效果均达到了100%,具有同常规磷化氢熏蒸杀虫相同的防治效果,且避免了害虫抗性的产生,符合绿色储粮的需求;二氧化碳气调储粮可适当延长粮食的宜存期,相应延长轮换周期,减少粮食的轮换次数,将为国家节省大量的轮换费用,经济效益明显。 相似文献
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我国储粮保管技术正由传统磷化物熏蒸向气调等绿色生态储粮方向发展,通过综述国内近几年低氧、二氧化碳和氮气等气调绿色储粮技术的最新研究应用进展和基本原理等,从而为该技术的推广与实施提供依据。 相似文献
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磷化氢与二氧化碳混合熏蒸试验报告 总被引:1,自引:0,他引:1
用仓外混合熏蒸机以磷化氢和二氧化碳混合熏蒸方式处理有虫小麦,结果表明,用这种新方法能够大大提高磷化氢(PH3)的渗秀速度和杀虫效果,具有投资少,操作简便,防治效果好的特点。 相似文献
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磷化氢与二氧化碳环流熏蒸试验报告 总被引:1,自引:1,他引:1
宿州国家粮食储备库用剂量1.5g/m^3的磷化铝与二氧化碳气体,对高大平房仓中的散装小麦进行熏蒸,熏蒸21d后,粮堆中害虫全部被杀死,取得了很好的杀虫效果,同时指出了环流熏蒸中应注意的几个问题。 相似文献
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气调和1-MCP对青菜保鲜贮藏的影响 总被引:4,自引:0,他引:4
利用1-甲基环丙烯(1-MCP,1-methylcyclopropene)和薄膜小包装气调技术(MAP技术)保鲜青菜,常温下贮藏8d,2℃下贮藏20d,对各种条件下的菜进行感官评价及测定贮藏期间叶绿素、色泽,硫代葡萄糖苷含量的值。研究表明经3%O2+35ppm1-MCP处理的青菜在2℃下的保鲜效果最好,表现为外观正常,无腐烂、萎焉现象,色泽,叶绿素、硫代葡萄糖苷各项测定指标较好。经3%O2处理的青菜在常温和2℃下都能保持较好的品质。而经35ppm1-MCP和3%O2+35ppm1-MCP处理的青菜在2℃中保鲜效果较好,但在常温下贮藏5d后保鲜效果较差。 相似文献
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Tomatoes at pink stage maturities were coated with SemperfreshTM edible fruit coating which is composed of sucrose esters of fatty acids, sodium carboxymethyl cellulose and mono-diglycerides of fatty acids. One group of coated and uncoated tomatoes were stored at 23 × 2C under air atmosphere, another group was stored at 12C under air atmosphere and third group was stored at 12C, 93–95% RH in a controlled atmosphere (CA) containing 3% CO2 , 3% O2 and 94% N2 . Samples of tomatoes were analyzed for firmness, weight loss, titratable acidity, pH, soluble solids, sugars, ascorbic acid and lycopene to examine changes in quality during storage. SemperfreshTM edible fruit coating was found to be significantly effective at both storage temperatures (23 × 2C and 12C) in air to delay changes in firmness, titratable acidity, pH, soluble solids, sugars, ascorbic acid and lycopene. SemperfreshTM fruit coating reduced fruit weight loss as compared to fruit without coating but the difference between coated and uncoated tomatoes was not significant. Shelf-life of pink tomatoes was increased 3 days at 23 × 2C and 6 days at 12C in air by coating. CA storage delayed compositional changes in tomatoes significantly as compared to air storage of coated and uncoated tomatoes. CA storage also had a significant potential for reducing weight loss and microbial spoilage. Tomatoes were stored 40 days in CA. Coated and uncoated tomatoes exhibited the same results in CA. 相似文献
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对超临界二氧化碳酶降解与常压条件下酶催化降解苎麻胶质进行对比研究。采用DNS、HPLC及咔唑法等方法对主要降解产物——糖类物质的变化规律进行分析,采用扫描电镜法对降解后的苎麻韧皮结构进行表观分析。研究结果表明:当超临界二氧化碳压力为10 MPa,果胶酶用量0.4 %,半纤维素酶用量为0.2 %,转速250 r/min,反应3 h时,胶质去除率达17.2%。超临界二氧化碳酶降解较常压提前0.5 h到达降解终点;复配酶降解能力集中在前2 h;2个系统中还原总糖最高值为763 mg/20 g原麻,葡萄糖最高值为230 mg/20 g原麻。 相似文献
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超临界CO2萃取装置的消化创新与开发 总被引:6,自引:0,他引:6
介绍了超临界CO2萃取装置的消化创新与开发的情况。主要是研究了2001工业化装置的工艺流程。化工过程,设备过程控制系统,等方面的内容。 相似文献