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991.
介绍了油茶的特征特性,分析了荔波县油茶产业发展的前景及效益,指出发展油茶产业的重要意义,提出相应的对策,以供参考。 相似文献
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Physicochemical properties of green tea seed oil including cold test,color,flash point,gravity,refraction index,moisture content,acid value,iodine value,unsaponifiable matter and saponification value were investigated.Fatty acid composition and catechin content of the oil was determined by GC and HPLC analysis.The oil is stable at low temperature.High flash point (267.8 ± 5.1 ℃) showed the high thermal stability of green tea seed oil as well,which support for suitability to use as cooking oil.Specific gravity and refraction index of green tea seed oil was found as 0.913 and 1.4679,respectively.Color of the oil was measured as 99.7 ±0.2 for lightness,1.9 ± 0.1 for greenness and 6.6 ± 0.1 for yellowness.Acid value (KOH mg/ml),iodine value,unsaponifiable matter (%) and saponification value of green tea seed oil were 0.21,104.1,0.11 and 215,respectively.Fatty acids compositions of green tea seed oil was found to be dominated by oleic acid (81.3%) and presence of minor amount of linoleic acid (4.8%),palmitic acid (4.6%),palmitoleic acid (3.3%),linolenic acid (3.2%) and stearic acid (1.0%).The presence of antioxidative compounds such as (-)-epicatechingallate (207.2 ±0.2 g/g) and (-)-epigallocatechin gallate (99.5 ±0.6 g/g) in the oil could enhance its shelf life during storage. 相似文献
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996.
腾冲红花油茶产业发展问题与措施 总被引:4,自引:3,他引:1
腾冲红花油茶是油茶主要栽培物种之一,加快其产业发展对实现国家食用油发展战略具有重要作用.分析了腾冲红花油茶的产业发展现状、存在问题以及发展的有利因素,提出了科学、细致规划,发掘优良种质资源,总结、引进和组装配套丰产栽培技术,加强龙头企业建设等产业发展的具体策略与措施. 相似文献
997.
株洲市油茶生产现状、开发前景与对策 总被引:18,自引:7,他引:11
介绍了株洲油茶生产、加工现状。通过对油茶几种改造方式的比较,在分析株洲市所属各县、市油茶生产与开发、油茶的生产潜力及市场容量3方面的基础上。提出了加强政策引导、强化行政手段、进行科学分类、集约经营.加强依法治林、强化林政管理。建立加工和营销体系等对策。得出了油茶开发潜力很大。是株洲林业产业结构调整,致富林农的必由之路。 相似文献
998.
Qi-He Yang Xiao Wei Xian-Lu Zeng Wan-Hui Ye Xiao-Juan Yin Wang Zhang-Ming Yun-Sheng Jiang 《Forest Ecology and Management》2008
Camellia nitidissima Chi (Theaceae) is a famous ornamental species with golden-yellow flowers. Due to deforestation and destructive collection of seedlings, its natural population size has been reduced greatly in recent decades. To provide basic information for its conservation, we studied the morphological and physiological characteristics of seeds and the environmental factors influencing germination. The seed production of C. nitidissima was of low yield, which caused lack of seed resource. The seeds were big and heavy, so they did not spread far from the mother trees and did not enter soil after falling down. Optimal temperatures for seed germination were 25–30 °C. The fresh-harvested seeds had high moisture content and weak desiccation-tolerance, so they tended to be recalcitrant. Soaking for 24 h in 10–30% PEG solution could significantly reduce the seed germination percentage. The imbibed seeds placed on the soil surface mostly could germinate, but some of them could not develop into seedlings because the embryo roots did not grow into soil. When the seeds were sowed at the depth of 1 cm, the seedling emergence reached over 70%, but then decreased with increased sowing depth, and reached about 50% when at the depth of 5 cm. The seeds sowed in sandy soil had higher emergence than those in clayed soil. It is feasible for seedling nursing to harvest seeds in time, harvesting prematurely or postmaturely may reduce seed quality. 相似文献
999.
对云南蒜头果油的特征指标及脂肪酸组成进行了分析.分析结果表明:蒜头果油折光指数(n40)为1.4594、相对密度(d2020)为0.8756、碘值(Ⅰ)为71.5 g/100 g、皂化值(KOH)为151 mg/g.蒜头果油主要脂肪酸组成为棕榈酸(0.55%)、硬脂酸(0.20%)、油酸(30.81%)、亚油酸(1.52%)、亚麻酸(0.82%)、花生—烯酸(2.21%)、芥酸(15.20%)、神经酸(44.21%).蒜头果油的不饱和脂肪酸含量高达94.77%,含量最高的脂肪酸为神经酸,高达44.21%,这在我国发现的油料作物中是罕见的.本研究为更好地保护云南蒜头果资源提供了基础数据. 相似文献
1000.
油茶籽的综合利用现状及前景分析 总被引:7,自引:0,他引:7
综述了用油茶籽综合开发的茶油、茶皂素、茶籽多糖、茶蛋白、糠醛、活性炭等产品的特性,及其加工工艺和应用。 相似文献