Functionality Analysis of Spent Coffee Ground Extracts Obtained by the Hydrothermal Method

Coffee is a popular beverage all over the world, but spent coffee grounds (SCGs) constituting almost 75% of original beans are usually considered waste and disposed off. The present study analyzed the functionalities of SCG with a view of its reuse in the cosmetic industry. The SCG extraction was ca...

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Published inJournal of chemistry Vol. 2019; no. 2019; pp. 1 - 8
Main Authors Lin, Yung-Sheng, Yang, Shang-Jhen, Hsu, Hsiu-Cheng, Huang, Wen-Ying, Agrawal, Dinesh Chandra, Wu, Chin-Tung, Huang, Shu-Ling
Format Journal Article
LanguageEnglish
Published Cairo, Egypt Hindawi Publishing Corporation 2019
Hindawi
John Wiley & Sons, Inc
Wiley
Subjects
Acids
Analysis
Antioxidants
Beans
Beverages
Bioflavonoids
Caffeine
Chromatography
Coffee
Equivalence
Flavones
Flavonoids
Gallic acid
Methods
Scavenging
Skin care products
Toiletries
Toiletries industry
Tyrosinase
Waste disposal
Taiwan
Online AccessGet full text

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Abstract Coffee is a popular beverage all over the world, but spent coffee grounds (SCGs) constituting almost 75% of original beans are usually considered waste and disposed off. The present study analyzed the functionalities of SCG with a view of its reuse in the cosmetic industry. The SCG extraction was carried out by the hydrothermal method. The resultant extracts were tested for its antioxidant capacity, tyrosinase inhibition, and moisturizing ability. LC–MS/MS results showed two major components in SCG extracts, namely, trigonelline and caffeine. Also, the SCG contained total flavonoid contents of 29 ± 4.5 mg quercetin equivalents (QE)/g SCG and total phenolic contents of 9.44 ± 0.90 mg gallic acid equivalents (GAE)/g SCG. Regarding functionality analysis, SCG extracts exhibited reduction capacity of 8.18 ± 0.39 mg vitamin C equivalent (VCE)/g SCG, DPPH free-radical scavenging activity (IC50) of 3.11 mg SCG/mL, ABTS free-radical scavenging activity (IC50) of 13.61 mg SCG/mL, and tyrosinase inhibition capacity (IC50) of 2.23 mg SCG/mL. Moreover, the volatilization rate of the extract solution (37 mg SCG/mL) reduced by 15.9%. These results demonstrate the utility of recycling of SCG and illustrate its potential application in the development of skin care products.
AbstractList Coffee is a popular beverage all over the world, but spent coffee grounds (SCGs) constituting almost 75% of original beans are usually considered waste and disposed off. The present study analyzed the functionalities of SCG with a view of its reuse in the cosmetic industry. The SCG extraction was carried out by the hydrothermal method. The resultant extracts were tested for its antioxidant capacity, tyrosinase inhibition, and moisturizing ability. LC-MS/MS results showed two major components in SCG extracts, namely, trigonelline and caffeine. Also, the SCG contained total flavonoid contents of 29 [+ or -] 4.5 mg quercetin equivalents (QE)/g SCG and total phenolic contents of 9.44 [+ or -] 0.90 mg gallic acid equivalents (GAE)/g SCG. Regarding functionality analysis, SCG extracts exhibited reduction capacity of 8.18 [+ or -] 0.39 mg vitamin C equivalent (VCE)/g SCG, DPPH free- radical scavenging activity ([IC.sub.50]) of 3.11 mg SCG/mL, ABTS free-radical scavenging activity ([IC.sub.50]) of 13.61 mg SCG/mL, and tyrosinase inhibition capacity ([IC.sub.50]) of 2.23 mg SCG/mL. Moreover, the volatilization rate of the extract solution (37 mg SCG/mL) reduced by 15.9%. These results demonstrate the utility of recycling of SCG and illustrate its potential application in the development of skin care products.
Coffee is a popular beverage all over the world, but spent coffee grounds (SCGs) constituting almost 75% of original beans are usually considered waste and disposed off. The present study analyzed the functionalities of SCG with a view of its reuse in the cosmetic industry. The SCG extraction was carried out by the hydrothermal method. The resultant extracts were tested for its antioxidant capacity, tyrosinase inhibition, and moisturizing ability. LC–MS/MS results showed two major components in SCG extracts, namely, trigonelline and caffeine. Also, the SCG contained total flavonoid contents of 29 ± 4.5 mg quercetin equivalents (QE)/g SCG and total phenolic contents of 9.44 ± 0.90 mg gallic acid equivalents (GAE)/g SCG. Regarding functionality analysis, SCG extracts exhibited reduction capacity of 8.18 ± 0.39 mg vitamin C equivalent (VCE)/g SCG, DPPH free-radical scavenging activity (IC50) of 3.11 mg SCG/mL, ABTS free-radical scavenging activity (IC50) of 13.61 mg SCG/mL, and tyrosinase inhibition capacity (IC50) of 2.23 mg SCG/mL. Moreover, the volatilization rate of the extract solution (37 mg SCG/mL) reduced by 15.9%. These results demonstrate the utility of recycling of SCG and illustrate its potential application in the development of skin care products.
Coffee is a popular beverage all over the world, but spent coffee grounds (SCGs) constituting almost 75% of original beans are usually considered waste and disposed off. The present study analyzed the functionalities of SCG with a view of its reuse in the cosmetic industry. The SCG extraction was carried out by the hydrothermal method. The resultant extracts were tested for its antioxidant capacity, tyrosinase inhibition, and moisturizing ability. LC–MS/MS results showed two major components in SCG extracts, namely, trigonelline and caffeine. Also, the SCG contained total flavonoid contents of 29 ± 4.5 mg quercetin equivalents (QE)/g SCG and total phenolic contents of 9.44 ± 0.90 mg gallic acid equivalents (GAE)/g SCG. Regarding functionality analysis, SCG extracts exhibited reduction capacity of 8.18 ± 0.39 mg vitamin C equivalent (VCE)/g SCG, DPPH free-radical scavenging activity (IC 50 ) of 3.11 mg SCG/mL, ABTS free-radical scavenging activity (IC 50 ) of 13.61 mg SCG/mL, and tyrosinase inhibition capacity (IC 50 ) of 2.23 mg SCG/mL. Moreover, the volatilization rate of the extract solution (37 mg SCG/mL) reduced by 15.9%. These results demonstrate the utility of recycling of SCG and illustrate its potential application in the development of skin care products.
Audience Academic
Author Lin, Yung-Sheng
Huang, Wen-Ying
Wu, Chin-Tung
Agrawal, Dinesh Chandra
Huang, Shu-Ling
Hsu, Hsiu-Cheng
Yang, Shang-Jhen
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ContentType Journal Article
Copyright Copyright © 2019 Chin-Tung Wu et al.
COPYRIGHT 2019 John Wiley & Sons, Inc.
Copyright © 2019 Chin-Tung Wu et al. This is an open access article distributed under the Creative Commons Attribution License (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. http://creativecommons.org/licenses/by/4.0
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Snippet Coffee is a popular beverage all over the world, but spent coffee grounds (SCGs) constituting almost 75% of original beans are usually considered waste and...
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SubjectTerms Acids
Analysis
Antioxidants
Beans
Beverages
Bioflavonoids
Caffeine
Chromatography
Coffee
Equivalence
Flavones
Flavonoids
Gallic acid
Methods
Scavenging
Skin care products
Toiletries
Toiletries industry
Tyrosinase
Waste disposal
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Title Functionality Analysis of Spent Coffee Ground Extracts Obtained by the Hydrothermal Method
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