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Effects of different press methods on quality of oil-tea camellia seed oil
  
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KeyWord:press  oil-tea camellia seed oil  sensory quality  characteristic index  physicochemical indicator  nutrient functional component  fatty acid
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WU Xuehui, LONG Ting  
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Abstract:
      In order to discuss the suitable extraction method of oil-tea camellia seed oil, the oil-tea camellia seed oil was prepared by three methods (ancient press, screw press and hydraulic press). The effects of different press methods on the sensory quality, characteristic index, physicochemical indicators, nutrient functional components and fatty acid composition of oil-tea camellia seed oil were analyzed and compared. The results showed that press method could significantly affect the sensory quality, characteristic index, physicochemical indicators and nutrient functional components of oil-tea camellia seed oil, while it had little effect on fatty acid composition. According to the comprehensive analysis of the grey correlation method and the principal component analysis method, the oil-tea camellia seed oil extracted by ancient method had the best sensory and physicochemical qualities, and the highest nutritional value.
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