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Narendra Singh Shah & Nirankar Nath 《International Journal of Food Science & Technology》2006,41(9):1073-1081
Litchi (Litchi chinensis Sonn.) fruits are very susceptible to pericarp browning which adversely affects consumer acceptability even though the aril portion remains in excellent condition. Litchi arils (litchis) were treated with a solution containing 0–2% (w/v) calcium lactate (CL), 0–0.02% (w/v) 4‐hexyl resorcinol (4‐HR) and 1% potassium sorbate. The pH of solution was adjusted to 4.0 with citric acid. Treated litchis were packed in polystyrene trays, over‐wrapped with polypropylene film, vacuum‐packed (0, 47409.3, 94831.9 Pa) and stored at 4 ± 2 °C. Drip losses, pH, total soluble solids (TSS), sensory attributes and microbiological quality of stored samples were estimated. A four‐factor, three‐level experimental design (D6 Hokes design) with 19 experiments was chosen. Mathematical models were developed to analyse and predict the effect of CL, 4‐HR, in‐package vacuum and storage time on the responses. TSS, pH and sensory scores decreased significantly (P 0.01), whereas drip losses and microbial count increased significantly (P 0.01) with time. Drip loss was significantly (P 0.1) reduced by addition of CL. 4‐HR prevented browning and changes in colour score during storage were significantly less. Vacuum in packages exerted significant (P 0.01) effect over pH, TSS, sensory and microbiological qualities of minimally processed litchis. 相似文献
114.
浅议朱提商业街规划设计中的文化传承 总被引:2,自引:2,他引:0
以朱提文化商业街为例,从地域文化分析、规划设计原则、人文环境设计、建筑造型四方面探讨了设计中的文化传承问题,以展示现代商业街街区的文脉,体现城市的文化。 相似文献
115.
本文提出一种可控环量船用翼数值模拟方法,其计算结果与最近Mclachlan的试验数据十分吻合。通过本文的计算,对广泛引用的Kind & Maull的二维试验数据提出了修正。根据本文所作的三维可控环量帆翼的试验结果,与二维计算值的比较,指出它们之间所存在的显著差别。 相似文献
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提出了一个适合于工科大学物理实验教学的光通信实验系统,该系统以简单的实验步骤和通俗易懂的实验原理,演示了当代的通信科技成就——光通信的工作过程.希望藉此将光通信原理的内容引入光电技术实验教学中,在丰富、扩充光电技术实验教学内容上作了有益的尝试. 相似文献
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Jonathan D. Bray Rodolfo B. Sancio Turan Durgunoglu Akin Onalp T. Leslie Youd Jonathan P. Stewart Raymond B. Seed Onder K. Cetin Ertan Bol M. B. Baturay C. Christensen T. Karadayilar 《Canadian Metallurgical Quarterly》2004,130(7):673-685
Ground failure in Adapazari, Turkey during the 1999 Kocaeli earthquake was severe. Hundreds of structures settled, slid, tilted, and collapsed due in part to liquefaction and ground softening. Ground failure was more severe adjacent to and under buildings. The soils that led to severe building damage were generally low plasticity silts. In this paper, the results of a comprehensive investigation of the soils of Adapazari, which included cone penetration test (CPT) profiles followed by borings with standard penetration tests (SPTs) and soil index tests, are presented. The effects of subsurface conditions on the occurrence of ground failure and its resulting effect on building performance are explored through representative case histories. CPT- and SPT-based liquefaction triggering procedures adequately identified soils that liquefied if the clay-size criterion of the Chinese criteria was disregarded. The CPT was able to identify thin seams of loose liquefiable silt, and the SPT (with retrieved samples) allowed for reliable evaluation of the liquefaction susceptibility of fine-grained soils. A well-documented database of in situ and index testing is now available for incorporating in future CPT- and SPT-based liquefaction triggering correlations. 相似文献
118.
《Canadian Metallurgical Quarterly》2003,39(3):581
The role of attention processes as possible mediators between family environment and school readiness was analyzed with data from 1,002 children and their families. Data on children's sustained attention, impulsivity, and school readiness (i.e., cognitive, achievement, language, and social development) were obtained at 54 months of age, and quality of the family environment was assessed throughout the first 54 months. Mediation tests showed that children's sustained attention partially accounted for the link between family environment and achievement and language outcomes. Impulsivity partially accounted for the link between family environment and achievement, social competence, and externalizing behaviors. The roles of sustained attention and of inhibition of impulsive responding in the relation between family characteristics and school readiness are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
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