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2020 Vol.33, Issue 5 Preview Page

Research Article

Variety, Cutting Date and Physiological Functionality for Production of Leaves in Goji Berry (Lycium chinense Mill.)

구기자 잎 생산에 알맞은 품종, 예취시기 및 생리활성 평가

Jung-Il Ju1*
,
Seung-Woo Paik2
,
Tug-Sang Yun2
,
Young-Chun Park2
,
Bo-Hee Lee2
,
Seung Wan Son2
주 정일1*
,
백 승우2
,
윤 덕상2
,
박 영춘2
,
이 보희2
,
손 승완2
1Senior Researcher, Goji Berry Research Institute, Chungnam-Do ARES, Cheongyang 33319, Korea
2Researcher, Goji Berry Research Institute, Chungnam-Do ARES, Cheongyang 33319, Korea
1충남농업기술원 구기자연구소 연구관
2충남농업기술원 구기자연구소 연구사
* Corresponding Author
1 October 2020. pp. 436-445
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Abstract

Goji berry (Lycium chinense Mill.) is one of medicinal plants. Its leaves has been used to manufacture the functional foods by replacing the dried-fruit because of low production costs. In order to produce the leaves of uniform quality, continuous selection and the establishment of cultivation techniques were required. Among the eleven recommended cultivars, ‘Myeongan’ showed high yielding and rapid regeneration after cutting. The dried-leaf yield was linearly increased from 106 ㎏/10a on May 16 to 287 ㎏/10a on June 20. An appropriate cutting date and cutting length (about 60-70 cm) was important factors for its efficient regeneration. The late cutting times were not suitable due to difficulties during plant harvesting because of stem rigidity and thorn generation. The betaine content of leaves ranged from 1.43 ~ 2.63% and significantly affected by the varieties and the cutting dates. The main physiological functionality of leaf was Angiotesin-1-converting enzyme (ACE) inhibitory activity, representing the anti-hypertensive. The other physiological functionalities, XOD inhibitory activity, antioxidant activity, tyrosinase inhibitory activity, SOD-like activity, α-glucosidase inhibitory activity and fibrinolytic activity, were not detected or less than 20%.

Keywords
Cutting date
Goji berry
Leaf production
Lycium chinense
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Information
  • Publisher :The Plant Resources Society of Korea
  • Publisher(Ko) :한국자원식물학회
  • Journal Title :Korean Journal of Plant Resources
  • Journal Title(Ko) :한국자원식물학회지
  • Volume : 33
  • No :5
  • Pages :436-445
  • Received Date : 2020-07-08
  • Revised Date : 2020-07-24
  • Accepted Date : 2020-07-27
  • DOI :https://doi.org/10.7732/kjpr.2020.33.5.436
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