• 한국가정과학회지
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• 제8권1호
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• pp.25-31
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• 2005

Chemical components of the physiological activity substance in Zizyphus jujuba seed were analyzed for the use as an functional processed products. The proximate compositions of Zizyphus jujuba seed were carbohydrate 89.40%, moisture 8.23%, crude protein 1.22%, crude fat 0.65% and crude ash 0.50%, respectively. the richest mineral contained in Zizyphus jujuba seed was Mg(198.3mg/100g), followed by Mn(113.0mg/100g), K(100.2mg/100g), Ca(25.3mg/100g), P(25.6mg/100g_, Fe(23.5mg/100g), Zn(18.7mg/100g), Cu(7.4mg/100g) and Na(5.3mg/100g). Total amino acid contents of Zizyphys jujuba seed were 1103.12mg/100g, and the major amino acids were proline(235.17mg%), aspartic acid(175.941mg%), gltamic acid(101.46mg%), leucine(50.27mg%), serine(47.71mg%), aspartic acid(47.27mg%), glycine(41.60mg%) and lysine (33.78mg%), respectively. The amount of free amino acids in the protein of Zizyphus jujuba seed were 178.62 mg/100g, and the major free amino acids were proline(121.30mg%), alanine(6.01mg%), valine(2.63mg%) and arginine(2.04mg%), respectively. The compositions of major total fatty acid in the lipid Zizyphus jujuba seed were C18:2(n5c) 28.72%, C18:1(n9t) 23.76%, C18:1(n9c) 13.45%, C16:0 13.45% and C20:5(n3) 1.77% in order, respectively.

• 한국자원식물학회지
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• 제29권5호
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• pp.539-546
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• 2016

대추 품종별 미숙과와 성숙과의 항산화 활성, 총페놀 함량, 비타민 C 함량 및 당도 변화를 측정하였다. 또한 이러한 결과를 토대로 항산화 활성과 총페놀 함량 및 비타민 C 함량과 당도와의 상관관계를 구명하였다. 즉, 대추과실이 성숙함에 따라 과실의 무게와 크기는 증가하였으나, 항산화 활성인 DPPH 라디칼 소거능, ABTS 라디칼 소거능 그리고 환원력은 감소하였다. 일반적으로 항산화 활성의 주요 인자로 작용하는 총페놀 함량 역시 과실이 성숙함에 따라 감소하였다. 대추 품종별 항산화 활성을 비교한 결과, DPPH 라디칼 소거능의 경우 미숙과 복조품종의 항산화 활성(71.20%)이 가장 우수하였으며, 환원력은 미숙과 무등 품종이 가장 뛰어났다. 총페놀 함량과 비타민 C의 최대 함량은 각각 62.50 ㎍/g(무등, 미숙과) 그리고 2540.0 ㎎/ 100 g(보은, 성숙과)이었다. 항산화 활성과 유용성분간의 상관관계를 분석한 결과, DPPH 자유 라디칼 소거능과 ABTS 라디칼 소거능과의 상관관계 r = 0.956으로 고도의 상관관계를 나타내었다. 일반적으로 대추를 식용으로 이용함에 있어 성숙과를 이용하였으나 본 연구에서 나타낸 결과를 보면 대추 미숙과의 항산화 활성과 총페놀 함량 등이 성숙과보다 우수하여 약리적인 측면에서는 유용할 수 있으며, 크기나 무게 그리고 당도 등을 고려하면 성숙과는 식용으로 유용하여 용도별에 따른 수확시기의 결정이 중요하다고 할 수 있다.

• 한국약용작물학회지
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• 제26권6호
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• pp.477-481
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• 2018

Background: Recently, jujube (Zizyphus jujuba Mill.) has been attracting attention as a fruit, and its cultivation in rain shelter house is increasing to produce the high quality fresh jujube. This study was carried out to investigate the growth and fruit characteristics of jujube according to the types of rain shelter house. Methods and Results: The characteristics of 5-year-old Bokjo cultivar cultivated in 3 types of rain shelter house, multi span rain shelter house with roof vent (Type I), single span house with a column in the center and roof vent (Type II) and single span house with a column in the center and without roof vent (Type III), and open field were examined. The sprouting and blooming period were different among the types of rain shelter house. The diameter of main stem was higher in rain shelter houses than in the open field. There was no a significant difference in fruit number per leaf stem among the types of cultivation. The incidence of fruit cracking in open field cultivation which was 51.2% was much higher than that in Type I 21.6%, Type II 19.3%, and Type III 25.5%. The fruit size and weight in rain shelter houses, especially in Type III rain shelter house were higher than those in the open field and the soluble solids content of fruit in Type I and Type II was higher than in Type III rain shelter house and the open field. Conclusions: The results show that the growth and fruit quality of jujube were improved by cultivation in rain shelter house, and affected by the types of rain shelter house.