Acid hydrolysis of spent coffee grounds: effects on possible prebiotic activity of oligosaccharides

Sarghini, Fabrizio; Marra, Francesco; Vivo, Angela De; Vitaglione, Paola; Mauriello, Gianluigi; Maresca, Diamante; Troise, Antonio Dario; Echeverria‐Jaramillo, Esteban

doi:10.1186/s40538-021-00262-3

Cited by 14 publications

(1 citation statement)

References 59 publications

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“…Microbes are able to degrade lignin or disrupt the bonds between lignin and cellulose within the cell walls of plants [25]. As indicated by Sarghini et al [26], another viable approach involves subjecting SCG to acid hydrolysis. These methods have shown efficacy in enhancing the benefits of SCG as animal feed ingredients.…”

Section: Discussionmentioning

confidence: 99%

Exploring the Nutritional Potential of Spent Coffee Grounds as a Substitute for Rice Bran in Feeds for Nile tilapia, Oreochromis niloticus: An Evaluation of Growth Performance and Biological Indices

Phinrub,

Sookying,

Srisuttha

et al. 2024

Aquaculture Nutrition

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This study aimed to assess the viability of replacing rice bran with spent coffee grounds (SCG) in the diets of Oreochromis niloticus (average body weight, 48.8 ± 0.42 g). The fish were randomly allocated into four sets of three groups each and placed in net cages (1 m × 2 m × 0.5 m) at a density of 30 fish per cage. They were fed diets with four different replacement levels: 0%, 5%, 10%, and 15% of SCG over a period of 90 days. Growth and serum biochemical indices were monitored three times at 30, 60, and 90 days. During the experiment, there were no significant differences (P >0.05) observed in growth indices, including weight gain (WG), daily WG, specific growth rate, feed conversion rate, protein efficiency ratio, and survival rate among the groups at 30, 60, and 90 days. Serum biochemical indices, such as aspartate aminotransferase and alanine aminotransferase, showed a similar trend with significant differences observed only on day 30, while the lowest and highest levels were found in the control and 15% SCG replacement groups, respectively. For total cholesterol, a significantly different result was found only on day 30. However, these differences were not sustained in subsequent assessments. Conversely, serum glucose, total protein, albumin, and globulin remained unaffected by SCG replacement throughout the experiment. The findings indicate that replacing rice bran with up to 15% SCG did not adversely impact the growth performance or key serum biochemical indices of Nile tilapia. To the researchers’ knowledge, these findings are the first in the field to substitute SCG for rice bran, opening a new avenue for further research.

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Section: Discussionmentioning

confidence: 99%

Exploring the Nutritional Potential of Spent Coffee Grounds as a Substitute for Rice Bran in Feeds for Nile tilapia, Oreochromis niloticus: An Evaluation of Growth Performance and Biological Indices

Phinrub,

Sookying,

Srisuttha

et al. 2024

Aquaculture Nutrition

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From Agricultural Waste to Functional Food Products: An Overview

Šovljanski

Šeregelj

Tomić

et al. 2023

Sustainable Development and Biodiversity

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Impact of Cold Atmospheric Plasma Pretreatment on the Recovery of Phenolic Antioxidants from Spent Coffee Grounds

Kyriakoudi,

Loukri,

Christaki

et al. 2024

Food Anal. Methods

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In the present study, cold atmospheric plasma (CAP) was employed as a pretreatment method for the extraction of phenolic compounds from spent coffee grounds (SCGs). The impact of CAP treatment conditions, i.e., thickness of the SCGs layer (mm), distance between the plasma source and the SCGs layer (mm) and duration of CAP treatment (min), on the total phenol content, in vitro antioxidant activity, as well as caffeine and chlorogenic acid content of SCGs, was investigated. The process parameters were optimized with the aid of response surface methodology (RSM). After optimizing the CAP pretreatment conditions, the CAP-treated SCGs were subjected to ultrasound-assisted extraction using ethanol as the extraction solvent. The optimum conditions for CAP treatment identified, i.e., thickness, 1 mm; distance, 16 mm; and duration, 15 min, led to a significant enhancement in the recovery of bioactive compounds from SCGs compared to those obtained from untreated SCGs. Total phenolic content and antioxidant activity significantly increased (i.e., TPC from 19.0 ± 0.7 to 24.9 ± 1.4 mg GAE/100 g dry SCGs, ADPPH from 106.7 ± 5.01 to 112.3 ± 4.3 μmol Trolox/100 g dry SCGs, AABTS from 106.7 ± 5.01 to 197.6 ± 5.8 μmol Trolox/100 g dry SCGs, ACUPRAC from 17938 ± 157 to 18299 ± 615 μmol Trolox/100 g dry SCGs). A significant increase in caffeine content from 799.1 ± 65.1 mg to 1064 ± 25 mg/100 g dry SCGs and chlorogenic acid content from 79.7 ± 15.3 mg to 111.3 ± 3.3 mg/100 g dry SCGs, was also observed. Overall, CAP pre-treatment can be used to enhance the recovery of bioactive compounds from SCGs.

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Acid hydrolysis of spent coffee grounds: effects on possible prebiotic activity of oligosaccharides

Cited by 14 publications

References 59 publications

Exploring the Nutritional Potential of Spent Coffee Grounds as a Substitute for Rice Bran in Feeds for Nile tilapia, Oreochromis niloticus: An Evaluation of Growth Performance and Biological Indices

Exploring the Nutritional Potential of Spent Coffee Grounds as a Substitute for Rice Bran in Feeds for Nile tilapia, Oreochromis niloticus: An Evaluation of Growth Performance and Biological Indices

From Agricultural Waste to Functional Food Products: An Overview

Impact of Cold Atmospheric Plasma Pretreatment on the Recovery of Phenolic Antioxidants from Spent Coffee Grounds

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