Potential of galled leaves of Goji (Lycium chinense) as functional food

Abstract Background Goji (Lycium) is a popular traditional health food, and its fruit and root extracts have been found to possess antioxidant, anti-inflammatory, and hypocholesterolemia-inducing abilities. Goji leaves also contain high amounts of phenolic compounds, similar to its fruit, and their...

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Main Authors: Po-Yen Chen, Tin-Han Shih, Kai-Chieh Chang, Jhin-Syuan Wang, Chi-Ming Yang, Yu-Sen Chang
Format: Article
Language:English
Published: BMC 2020-07-01
Series:BMC Nutrition
Subjects:
Online Access:http://link.springer.com/article/10.1186/s40795-020-00351-w
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author Po-Yen Chen
Tin-Han Shih
Kai-Chieh Chang
Jhin-Syuan Wang
Chi-Ming Yang
Yu-Sen Chang
author_facet Po-Yen Chen
Tin-Han Shih
Kai-Chieh Chang
Jhin-Syuan Wang
Chi-Ming Yang
Yu-Sen Chang
author_sort Po-Yen Chen
collection DOAJ
description Abstract Background Goji (Lycium) is a popular traditional health food, and its fruit and root extracts have been found to possess antioxidant, anti-inflammatory, and hypocholesterolemia-inducing abilities. Goji leaves also contain high amounts of phenolic compounds, similar to its fruit, and their extracts also exhibit several pharmaceutical effects. The induction of galls on Goji leaves reduces their photosynthetic ability and fruit yield, which raise their farming costs, thereby leading to economic loss. However, the defense mechanisms induced by infection may elevate the secondary metabolite content of the leaves, which might provide more nutritive compounds. Method Content of chlorophyll, carotenoids, polyphenols, and flavonoids in the extracts of normal and infected Goji leaves (L. chinense) were analyzed. The relative content of chlorogenic acid and rutin, two major phenolic compounds in Goji leaves, were determined by LC-MS/MS. Antioxidant activity was presented by demonstrating the DPPH scavenging percentage. The extract of Goji fruit (L. barbarum) was also analyzed to show a comparative result. Results In this study, we found that in infected Goji leaves, the polyphenol content was significantly increased. The level of chlorogenic acid was increased by 36% in galled leaves. The content of rutin in galled leaves was also elevated. Testing the antioxidant activities also showed that the extracts of galled leaves have higher DPPH scavenging abilities. Conclusions Our results demonstrated that galled Goji leaves have higher functional value, and may have potential as being consumed as health food.
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spelling doaj.art-a3a37bcf31fb4b6a8daa40532b4d2fa42022-12-21T23:58:26ZengBMCBMC Nutrition2055-09282020-07-016111010.1186/s40795-020-00351-wPotential of galled leaves of Goji (Lycium chinense) as functional foodPo-Yen Chen0Tin-Han Shih1Kai-Chieh Chang2Jhin-Syuan Wang3Chi-Ming Yang4Yu-Sen Chang5Biodiversity Research Center, Academia SinicaBiodiversity Research Center, Academia SinicaBiodiversity Research Center, Academia SinicaMiaoli District Agricultural Research and Extension StationBiodiversity Research Center, Academia SinicaDepartment of Horticulture and Landscape Architecture, National Taiwan UniversityAbstract Background Goji (Lycium) is a popular traditional health food, and its fruit and root extracts have been found to possess antioxidant, anti-inflammatory, and hypocholesterolemia-inducing abilities. Goji leaves also contain high amounts of phenolic compounds, similar to its fruit, and their extracts also exhibit several pharmaceutical effects. The induction of galls on Goji leaves reduces their photosynthetic ability and fruit yield, which raise their farming costs, thereby leading to economic loss. However, the defense mechanisms induced by infection may elevate the secondary metabolite content of the leaves, which might provide more nutritive compounds. Method Content of chlorophyll, carotenoids, polyphenols, and flavonoids in the extracts of normal and infected Goji leaves (L. chinense) were analyzed. The relative content of chlorogenic acid and rutin, two major phenolic compounds in Goji leaves, were determined by LC-MS/MS. Antioxidant activity was presented by demonstrating the DPPH scavenging percentage. The extract of Goji fruit (L. barbarum) was also analyzed to show a comparative result. Results In this study, we found that in infected Goji leaves, the polyphenol content was significantly increased. The level of chlorogenic acid was increased by 36% in galled leaves. The content of rutin in galled leaves was also elevated. Testing the antioxidant activities also showed that the extracts of galled leaves have higher DPPH scavenging abilities. Conclusions Our results demonstrated that galled Goji leaves have higher functional value, and may have potential as being consumed as health food.http://link.springer.com/article/10.1186/s40795-020-00351-wLycium chinenseGojiAntioxidantChlorogenic acidGallHealth food
spellingShingle Po-Yen Chen
Tin-Han Shih
Kai-Chieh Chang
Jhin-Syuan Wang
Chi-Ming Yang
Yu-Sen Chang
Potential of galled leaves of Goji (Lycium chinense) as functional food
BMC Nutrition
Lycium chinense
Goji
Antioxidant
Chlorogenic acid
Gall
Health food
title Potential of galled leaves of Goji (Lycium chinense) as functional food
title_full Potential of galled leaves of Goji (Lycium chinense) as functional food
title_fullStr Potential of galled leaves of Goji (Lycium chinense) as functional food
title_full_unstemmed Potential of galled leaves of Goji (Lycium chinense) as functional food
title_short Potential of galled leaves of Goji (Lycium chinense) as functional food
title_sort potential of galled leaves of goji lycium chinense as functional food
topic Lycium chinense
Goji
Antioxidant
Chlorogenic acid
Gall
Health food
url http://link.springer.com/article/10.1186/s40795-020-00351-w
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