Fructus Lycii
- Name
- Origin
- Where Does It Grow?
- Nature and Flavor
- Identified Active Components / Major Chemical Constituents
- Drug Actions in TCM
- Traditional Uses in TCM
- Pharmacological Actions
- Toxicology
- Administration and Dosage
- Adverse Effect, Side Effects and Cautions
- References
Name
Latin Name: Fructus Lycii
Common Name: Chinese wolfberry / Goji
Scientific Name: Lycium barbarum L.
Chinese Name: 枸杞子
Pinyin Name: gou qi zi
Origin
Wolfberry is the ripe fruit of Lycium barbarum L., a deciduous shrub of the Solanaceae family.1
Where Does It Grow?
Wolfberry is mainly produced in Ningxia, Inner Mongolia, Xinjiang, Gansu and Shanxi regions of China.1
Nature and Flavor
Wolfberry is sweet in flavor, neutral in nature, and mainly manifests its therapeutic actions in the kidney and liver meridians.2
Identified Active Components / Major Chemical Constituents
Major components in wolfberry includes Lycium barbarum glycoconjugates such as LbGp1, LbGp2, LbGp3, LbGp4 & PbGp5; Lycium barbarum polysaccharides such as LBP1a-1, LBP1a-2, LBP2a, LBP3a-1, LBP3a-2, LBPA3, LBPB1, LBPC2 & LBPC4; alkaloids such as betaine; carotenoids such as zeaxanthin, cryptosxanthin, and zeaxanthin dipalmitate; volatile compounds such as hexadecanoic acid, linoleic acid, β-sitosterol and myristic aicd. It also contains amino acids, trace elements, vitamins B & C, lyciumide A and scopoletin.1Drug Actions in TCM
Wolfberry nourishes the liver, promotes vision, invigorates the kidneys and replenishes essence.18Traditional Uses in TCM
- For spermatic emission due to kidney weakness, wolfberry is usually combined with processed rhemannia rhizome, flat-stem milkvetch seed and dodder seed.
- For poor vision due to yin deficiency of liver and kidney, it is usually combined with chrysanthemum and rehmannia root. A representative formula for this is the Rehmannia Pills Plus Wolfberry and Chrysanthemum.
- For diabetic individuals, it is combined with rehmannia root, dwarf lily-turf tuber and snakegourd root.
- For chronic coughs, it is combined with rehmannia root, anemarrhena rhizome, unibract fritillary bulb and lily bulb.
Pharmacological Actions
Toxicology
Many animal studies had proved that wolfberry is safe to eat; it does not contain any toxins and can consume in long-term.16 However, there is a report mentioned the potential herbal-drug interaction between warfarin and wolfberry.17
Administration and Dosage
10-15g each time for decoction.3
Adverse Effect, Side Effects and Cautions
References
- 趙中振,蕭培根主編《當代藥用植物典》香港賽馬會中藥研究院有限公司,2006年8月.
- 歐明主編《漢英常用中藥手冊》廣東科技出版社,1992年.
- 雷載權主編《中藥學》上海科學技術出版社,2000年6月.
- Chen Z, et al. Polysaccharide-protein complex from Lycium barbarum L. is a novel stimulus of dendritic cell immunogenicity. J Immuno, 2009 Mar 15; 182(6): 3503-3509.
- Chen Z, et al. Activation of macrophages by polysaccharide-protein complex from Lycium barbarum L.. Phytother Res, 2009 Aug; 23(8): 1116-1122.
- Chen Z, et al. Activation of T lymphocytes by polysaccharide-protein complex from Lycium barbarum L.. International Immunopharmacology ; 8: 1663-1671.
- Lin CL, et al. Antioxidative activity of polysaccharide fractions isolated from Lycium barbarum Linnaeus. Int J Biol Macromol, 2009 Aug 1; 45(2): 146-151.
- Niu AJ, et al. Protective effect of Lycium barbarum polysaccharides on oxidative damage in skeletal muscle of exhaustive exercise rats. International journal of biological macromolecules; 42(5): 447-449..
- Yu MS, et al. Characterization of the effects of anti-aging medicine Fructus lycii on beta-amyloid peptide neurotoxicity. International Journal of Molecular Medicine; 20(2): 261-268.
- Cao GW, et al. Observation of the effects of LAK/IL-2 therapy combining with Lycium barbarum polysaccharides in the treatment of 75 cancer patients. Zhonghua Zhong Liu Za Zhi; 16: 428-431.
- Kim HP, et al. Zeaxanthin dipalmitate from Lycium chinense has hepatoprotective activity. Res Commun Mol Pathol Pharmacol, 1997 Sep; 97(3): 301-314.
- Chan HC, et al. Neuroprotective effects of Lycium barbarum Lynn on protecting retinal ganglion cells in an ocular hypertension model of glaucoma. Experimental Neurology; 203(1): 269-273.
- Wang Y, et al. Protective effect of Fructus Lycii polysaccharides against time and hyperthermia-induced damage in cultured seminiferous epithelium. Journal of Ethnopharmacology; 82(2-3): 169-175.
- Luo Q, et al. Hypoglycemic and hypolipidemic effects and antioxidant activity of fruit extracts from Lycium barbarum. Life Sci; 76: 137-149.
- Jia YX, et al. The effect of Lycium barbarum polysaccharide on vascular tension in two-kidney, one clip model of hypertension. Sheng Li Xue Bao; 50(3): 309-314.
- 華夏中醫藥網. 枸杞的功效和用法. Retrieved from the World Wide Web: http://data.zyy123.com/Fruit/Wolfberry/55157.html
- Leung H, et al. Warfarin overdose due to the possible effects of Lycium barbarum L. Food Chem Toxicol; 46(5): 1860-1862.
- 沈丕安編著《補益中藥的臨床運用》第二軍醫大學出版社,2008年8月.