The influence of extraction parameters on spent coffee grounds as a renewable tannin resource

Low, Jiun Hor; Rahman, Wan Aizan Wan Abdul; Jamaluddin, Jamarosliza

doi:10.1016/j.jclepro.2015.03.094

Cited by 41 publications

(13 citation statements)

References 30 publications

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“…The research on coffee extractives is a pertinent subject that covers the progressive processing stages (raw, roasted, brewed, and spent) of this raw material [2,22,23,26] and involves challenges such as the quality control of samples [4,12,14,24] and valorization of residues [3,6,10].…”

Section: Introductionmentioning

confidence: 99%

Reliable discriminant analysis tool for controlling the roast degree of coffee samples through chemical markers approach

Toledo

Melo

Pezza

et al. 2016

Eur Food Res Technol

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Section: Introductionmentioning

confidence: 99%

Reliable discriminant analysis tool for controlling the roast degree of coffee samples through chemical markers approach

Toledo

Melo

Pezza

et al. 2016

Eur Food Res Technol

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“…This is possibly due to the variation in the content of the different components in the SCG, which can vary according to the method of extraction of the coffee beverage (Ballesteros, Ramirez, Orrego, Teixeira, & Mussatto, ). Finally, Low, Rahman, and Jamaluddin (), reported that the antioxidant content in cosmetic products favors the increase in the sun protection factor. The above being an important result for the product obtained here.…”

Section: Resultsmentioning

confidence: 98%

Evaluation of the antioxidant and physical properties of an exfoliating cream developed from coffee grounds

Delgado-Arias

Zapata‐Valencia

Cano‐Agudelo

et al. 2019

J Food Process Engineering

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Currently, around 1.6 billion cups of coffee are consumed daily in the world, generating around 6 million tons of waste known as spent coffee grounds (SCG), which are a source of environmental pollution. The main objective of this research was to develop an exfoliating body cream from SCG. The methodology included convective drying of the SCG at 60 C. The exfoliating cream was formulated with 4, 6, and 8% of SCG, the antioxidant contents were determined by ABTS+; the adhesiveness was analyzed with a Texture Profile Analyzer and the exfoliating capacity evaluated with a Mexámeter MX18. The results were analyzed by means of an ANOVA analysis, with α = 0.05. As the main result, final moisture of SCG was of 5%. The content of antioxidants of body cream was 97.64-128.15μMol ETrolox/gSS. The exfoliating capacity of the three formulations showed similar behavior and do not show significant differences (p > .05). It can be concluded that the SCG can be used for the development of exfoliating body cream, obtaining a cosmetic product with exfoliating and antioxidant properties; being the above, a processing alternative for the agro-industrial residues generated in the coffee industry. Practical applicationIn this study, an exfoliating body cream was developed from the SCGs, which is an agroindustrial waste generated by the coffee processing industry. It was determined that the hot air-drying process is a suitable method for the processing of coffee grounds since a stable product with low moisture is obtained. In addition, it was also possible to obtain an exfoliating cream for the body with antioxidant and polyphenol content, with textural and exfoliation properties similar to that of a commercial cream. The main application of this research is that it gives full use to the waste of coffee to obtain a cosmetic product with sensory, textural, and exfoliating properties of this type of products, being a processing alternative for agro-industrial waste generated in the coffee processing industry.

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“…Moreover, in vivo results have shown that the incorporation of SCG oil has no cytotoxic effect for skin and liver cells. 7…”

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confidence: 99%

“…Earlier studies demonstrated that SCGs contain large amounts of functional compounds, including phenolic compounds, terpenes, caffeine, and Maillard reaction products. [5][6][7][8] Therefore, instead of ordinary disposal methods, more sustainable methods for the reuse of SCGs should be explored, which would not only reduce the threat toward the environment but also provide a solution to manage beverage waste. 7 In recent years, many researchers have been interested in functional compounds in SCGs and have tried to use SCG extract for health-promoting applications.…”

mentioning

confidence: 99%

“…[5][6][7][8] Therefore, instead of ordinary disposal methods, more sustainable methods for the reuse of SCGs should be explored, which would not only reduce the threat toward the environment but also provide a solution to manage beverage waste. 7 In recent years, many researchers have been interested in functional compounds in SCGs and have tried to use SCG extract for health-promoting applications. Earlier studies have demonstrated that the extracts produced from SCGs exhibit anti-tumor and anti-allergic activities related to the presence of phenolic compounds, such as chlorogenic acid.…”

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confidence: 99%

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Preparation and properties of wool fabrics dyed with spent coffee ground extract

Koh

Hong

2017

Textile Research Journal

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Spent coffee grounds (SCGs) are solid residues generated from coffee brewing and are mostly discarded as waste. However, SCGs are drawing much attention because they have many health-promoting compounds that exhibit anti-tumor, anti-allergic, antioxidant, and other activities. Therefore, we tried to use SCGs for fabric dyeing to apply functional and coloring effects to the fabrics. SCGs were extracted by a conventional solid–liquid method, and the extract was applied to wool fabrics through a laboratory infrared dyeing machine. It was found that the extract contained a significant number of bioactive components, such as tannins (ca. 0.61 mg/mL); caffeine (ca. 0.38 mg/mL); and phenolic compounds, including chlorogenic acid (ca. 0.21 mg/mL). The wool fabrics dyed with the SCG extract exhibited promising coloring effects, displaying deep-brown hues. In addition, the colorfastness to washing and light were superior to that of fabrics dyed with other natural pigments. In particular, the wool fabrics dyed with the SCG extract showed excellent antioxidant ability (≤86%) and high levels of ultraviolet blocking (≥98%).

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The influence of extraction parameters on spent coffee grounds as a renewable tannin resource

Cited by 41 publications

References 30 publications

Reliable discriminant analysis tool for controlling the roast degree of coffee samples through chemical markers approach

Reliable discriminant analysis tool for controlling the roast degree of coffee samples through chemical markers approach

Evaluation of the antioxidant and physical properties of an exfoliating cream developed from coffee grounds

Preparation and properties of wool fabrics dyed with spent coffee ground extract

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