Food-grade microemulsions based on nonionic emulsifiers: media to enhance lycopene solubilization     

Spernath A  Yaghmur A  Aserin A  Hoffman RE  Garti N 《Journal of agricultural and food chemistry》2002,50(23):6917-6922

Water-dilutable food-grade microemulsions consisting of ethoxylated sorbitan esters, and in some cases blended with other emulsifiers, water, (R)-(+)-limonene, ethanol, and propylene glycol, have been prepared. These microemulsions are of growing interest to the food industry as vehicles for delivering and enhancing solubilization of natural food supplements with nutritional and health benefits. Lycopene, an active natural lipophilic antioxidant from tomato, has solubilized in water-in-oil, bicontinuous, and oil-in-water types of microemulsions up to 10 times the oil [(R)-(+)-limonene] dissolution capacity. The effects of aqueous-phase dilution, nature of surfactant (hydrophilic-lypophilic balance), and mixed surfactant on solubilization capacity and solubilization efficiency were studied. Structural aspects studied by self-diffusion NMR were correlated to the solubilization capacity, and transformational structural changes were identified.  相似文献   

Quantification of the effect of rice paddy area changes on recharging groundwater     

Mitsumasa Anan  Kozue Yuge  Yoshisuke Nakano  Satiant Saptomo  Tomokazu Haraguchi 《Paddy and Water Environment》2007,5(1):41-47

This study quantifies the effects of paddy irrigation water on groundwater recharge. A numerical model of groundwater flow was conducted using MODFLOW in a 600 ha study site in an alluvial plain along the Chikugo River, located in southwestern Japan. To specify the surface boundary condition, data on the land use condition stored in the GIS database were transferred into a numerical model of groundwater flow. The simulated results were consistent with the observed yearly changes of groundwater level. Thus, it was appropriate to use the model to simulate the effects of paddy irrigation on groundwater. To quantify these effects, the groundwater level was simulated during the irrigation period when all farmlands in the study site were ponded. In this situation, the groundwater level was 0.5 to 1.0 m higher, the ground water storage 20% larger, and the return flow of the groundwater to the river 50% larger than in the present land use condition.  相似文献   

早稻麻地膜垫盘育秧对机插质量及产量的影响     

熊常财  涂修亮  汪红武  李景柱  汤涤洛  余安安  陈柳翠 《农业科学与技术》2013,(11):1559-1562,1574

[目的]研究早稻麻地膜垫盘育秧对机插质量及产量的影响。[方法]试验示范对比了早稻机插育秧用麻地膜垫盘与不垫盘秧苗素质、机插漏蔸率、机插密度、成熟率及产量。并通过数据分析对垫膜与不垫膜育秧的各项指标进行了对比。[结果]秧盘垫麻地膜比不垫麻地膜产量提高了11.9%,秧苗素质明显提高,易起苗,不易散,机插漏蔸率降低。[结论]该研究为麻地膜用于早稻垫盘机插育秧的技术提供了理论依据。  相似文献   

Effect of rice straw management and organic fertilizer application on growth and yield of dry direct-seeded rice     

Anan Polthanee  Vidthaya Tre-loges  Khanistha Promsena 《Paddy and Water Environment》2008,6(2):237-241

The objectives of this research were to investigate the effect of rice straw management and application of different types of organic fertilizer on growth and yield of dry direct-seeded rice grown under rainfed conditions. The experiment was conducted in a farmer’s field at Muang Yai village, Khon Kaen province in 2005. A split-plot design was used, with the main plot under rice straw management (incorporating into the soil and burning), and sub-plots by type of organic fertilizer (green manure, cattle manure and powder organic fertilizer) and one plot under no-fertilizer application. It was found that rice straw incorporated into the soil had no significant effect on grain yield when compared with the effect of burning. Organic fertilizer of cattle manure and powder organic fertilizer significantly increased grain yield over that of green manure and no-fertilizer application. This paper is listed as a series of articles of the special issue “Water and Food” 6(1), March 2008.  相似文献   

恢复生长与电导法结合分析橡胶树抗寒性研究     

李玲  桂明春  管艳  毛常丽  田海  张凤良  吴裕  段安安  梁国平 《热带作物学报》2021,42(2):370-377

研究低温胁迫下,橡胶树(Hevea brasiliensis Muell.Arg.)不同组织的抗寒性情况以及品种间的差异,为进一步研究橡胶树的冷敏感性或耐受机制奠定基础.以橡胶树'云研77-4'和'热研8-79'无性系幼苗为材料,进行不同低温类型的室内低温胁迫处理,对橡胶树不同叶片和茎杆组织进行电导率测定,并结合恢复生...  相似文献   

Improvement of anemia associated with chronic renal failure by recombinant human erythropoietin treatment in ICR-derived glomerulonephritis (ICGN) mice     

Yamaguchi-Yamada M  Manabe N  Goto Y  Anan S  Miyamoto K  Miyamoto Y  Nagao M  Yamamoto Y  Ogura A 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2004,66(7):883-886

The ICR-derived glomerulonephritis (ICGN) mouse, a novel inbred mouse strain with a hereditary nephrotic syndrome, develops severe anemia associated with chronic renal failure. To reveal the pathogenic mechanism of anemia in ICGN mice, we subcutaneously administered recombinant human erythropoietin (rhEPO; 5 IU/mouse/day) or saline for 5 days to ICGN mice. In terminal-stage ICGN mice with severe anemia, rhEPO significantly increased hematocrit (Ht), red blood cells (RBC) and hemoglobin levels. Endogenous EPO levels in peripheral blood were reduced by rhEPO injection. No histopathological changes in bone marrow and kidneys were induced by rhEPO injection. Insufficiency of EPO may cause anemia in ICGN mice.  相似文献   

Prediction of enteric methane emission from beef cattle in Southeast Asia          下载免费PDF全文

Tomoyuki Suzuki  Kritapon Sommart  Wanna Angthong  Thu Van Nguyen  Anan Chaokaur  Peerapot Nitipot  Arun Phromloungsri  Yimin Cai  Takashi Sakai  Takehiro Nishida  Fuminori Terada  Tomoyuki Kawashima 《Animal Science Journal》2018,89(9):1287-1295

We conducted a meta‐data analysis to develop prediction equations to estimate enteric methane (CH₄) emission from beef cattle in Southeast Asia. The dataset was obtained from 25 studies, which included 332 individual observations on nutrient intakes, digestibilities, and CH₄ emissions. Cattle were provided tropical forage or rice straw, with or without concentrates in individual pens equipped with indirect open‐circuit head hood apparatus. The simplest and best equation to predict daily CH₄ emission was CH₄ (g/day) = 22.71 (±1.008) × dry matter intake (DMI, kg/day) + 8.91 (±10.896) [R² = 0.77; root mean square error (RMSE) = 19.363 g/day]. The best equation to predict CH₄ energy as a proportion of gross energy intake (CH₄‐E/GEI, J/100 J) was obtained using DMI per body weight (DMIBW, kg/100 kg), content (g/100 g DM) of ether extract (EE) and crude protein (CP), and DM digestibility (DMD, g/100 g); CH₄‐E/GEI = ?0.782 (±0.2526) DMIBW ? 0.436 (±0.0548) EE ? 0.073 (±0.0218) CP + 0.049 (±0.0097) DMD + 8.654 (±0.6517) (R² = 0.39; RMSE = 1.3479 J/100 J GEI). It was indicated that CH₄ emissions from beef cattle in Southeast Asia are predictable using present developed models including simple indices.  相似文献   

Characteristics of water balance in a rainfed paddy field in Northeast Thailand     

Shinkichi Goto  Tsuneo Kuwagata  Pisarn Konghakote  Anan Polthanee  Yasushi Ishigooka  Hitoshi Toritani  Toshihiro Hasegawa 《Paddy and Water Environment》2008,6(1):153-157

Rice productivity in rainfed paddy fields varies with seasonal changes of water availability in which the conditions of flooding are affected by the water balance. Hydrometeorological measurements were performed in a rainfed paddy field in Northeast Thailand from July 2004 to December 2006 to analyze the water balance. As a result of our measurements, climatologically conditions were classified as semi-humid with an annual precipitation of 1,100 mm/year and annual potential evaporation of 1,660 mm/year in both the year. The surface layer of the paddy soil was clayey and the hydraulic conductivity was very low, so groundwater levels remained below the soil surface even under flooded conditions during the rainy season. Seasonal changes in the amount of soil water were very small, comprising only less than 16% of the total precipitation during the rainy season. Consequently, an effective precipitation of less than 180 mm was enough to establish standing water in the rainfed paddy field. Shinkichi Goto, Tsuneo Kuwagata and Pisarn Konghakote contributed equally to the paper.  相似文献   

牛筋草生防菌NJC-16的分离鉴定及生物学特性研究          下载免费PDF全文

顾琼楠  欧翔  褚世海  黄启超  陈安安  李儒海 《中国生物防治学报》2021,37(4):817-825

为了筛选并获得低毒且高效的牛筋草生防菌,采用常规组织分离法获得牛筋草炭疽病病原菌菌株NJC-16,通过形态学观察结合ITS序列分析对菌株进行鉴定,确定该菌株为牛筋草炭疽菌Colletotrichum eleusines。该病原菌最适生长温度为25℃;不同光照条件对病原菌生长无显著差异;在供试碳（氮）源中病原菌对淀粉和酵母粉的利用效果最好;生长最适pH为6～9;菌丝的致死温度为65℃、10 min。室内生防试验表明,菌株NJC-16分生孢子悬浮液对牛筋草防效最佳,接菌21 d后牛筋草发病率为83.2%,鲜重防效达73%,对稗、马唐、千金子、反枝苋、大巢菜的生防效果较差。作物安全性试验表明,该菌株的分生孢子液对玉米、小麦、水稻安全。综上所述,菌株NJC-16有开发成为生物除草剂的潜力。  相似文献   

The effect of oil contamination on bacteria in a soddy-podzolic soil     

A. V. Nazarov  L. N. Anan’ina  O. V. Yastrebova  E. G. Plotnikova 《Eurasian Soil Science》2010,43(12):1382-1386

The effect of oil contamination on bacteria in a soddy-podzolic soil was studied. Oil was introduced into the soil 8, 11, and 17 years ago. It was found that oil contamination has exerted long-term negative effects on the number and biomass of the soil bacteria. The deficiency of available phosphorus was one of the major negative factors affecting these parameters in the old-contaminated soils. The application of Na₂HPO₄ to the contaminated soils eliminated this negative effect. The effect of oil contamination on the taxonomic diversity and structure of the bacterial community in the studied soil was determined with the help of denaturating gradient gel electrophoresis.  相似文献