Optimization of Supercritical Carbon Dioxide and Co-solvent Ethanol Extraction of Wasted Peanut Skin Using Response Surface Methodology

Putra, Nicky Rahmana; Aziz, Ahmad Hazim Abdul; Yian, Lee Nian; Ramli, Wan Diyana; Yunus, Mohd Azizi Che

doi:10.1051/matecconf/201815602005

Cited by 5 publications

(3 citation statements)

References 21 publications

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“…Plant materials differ in phenolic chemicals, flavonoid compounds, and tannins [85][86][87]. Different extraction conditions are required to obtain maximum extract yield recovery and excellent extract quality [3,4,7,78,88,89]. An extract's number of bioactive compounds is critical for assessing its quality [90].…”

Section: Valorization Of Peanut Skin By Conventional and Green Extrac...mentioning

confidence: 99%

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Valorization of Peanut Skin as Agricultural Waste Using Various Extraction Methods: A Review

et al. 2023

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Peanuts (Arachis hypogea) can be made into various products, from oil to butter to roasted snack peanuts and candies, all from the kernels. However, the skin is usually thrown away, used as cheap animal feed, or as one of the ingredients in plant fertilizer due to its little value on the market. For the past ten years, studies have been conducted to determine the full extent of the skin’s bioactive substance repertoire and its powerful antioxidant potential. Alternatively, researchers reported that peanut skin could be used and be profitable in a less-intensive extraction technique. Therefore, this review explores the conventional and green extraction of peanut oil, peanut production, peanut physicochemical characteristics, antioxidant activity, and the prospects of valorization of peanut skin. The significance of the valorization of peanut skin is that it contains high antioxidant capacity, catechin, epicatechin resveratrol, and procyanidins, which are also advantageous. It could be exploited in sustainable extraction, notably in the pharmaceutical industries.

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Section: Valorization Of Peanut Skin By Conventional and Green Extrac...mentioning

confidence: 99%

“…Moreover, peanut skins are beneficial as they are rich in antioxidants, catechin, epicatechin, resveratrol, and anthocyanidins [3,4]. They may reduce the rate of free-radicalinduced oxidation processes [5].…”

Section: Introductionmentioning

confidence: 99%

Valorization of Peanut Skin as Agricultural Waste Using Various Extraction Methods: A Review

et al. 2023

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“…Plant antioxidants vary not just in terms of redox potential and solubility, but also in terms of how they work. Some ROS, such as superoxide, hydroxyl radicals, and singlet oxygen, are quenched [63]. Others decrease oxidative enzyme activity or expression, increase antioxidative compound or enzyme activity or expression, such as catalase, or chelate oxidizing metal ions, or operate via various mechanisms, both known and undiscovered.…”

Section: Antioxidant Activitiesmentioning

confidence: 99%

Methods and Potential in Valorization of Banana Peels Waste by Various Extraction Processes: In Review

et al. 2022

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Over 114 million metric tons of bananas are produced each year. The peel, which accounts for roughly one-third of the fruit’s weight, is commonly discarded as waste in the food industry. For centuries, the peel has been prized for its potential to heal a host of ailments. This by-product contains a large concentration of compounds with potent antioxidants linked to several health benefits. Consequently, the extracted valuable components, such as pectin, from this by-product could be applied to the pharmaceutical and food industries. More than 13% of pectin recovery is extracted by current extraction methods, such as ultrasound-assisted extraction. Subcritical water extraction also successfully extracts the pectin with high quality of extract. This review focuses on banana production and the role of pectin. Significant factors affecting its presence within the banana peel, the extraction methods, and current extraction applications are also presented and discussed, highlighting future research into its potential uses.

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Comparison of Alliin Recovery from Allium sativum L. Using Soxhlet Extraction and Subcritical Water Extraction

et al. 2022

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Garlic (Allium sativum L.) is an herbaceous plant and is recognised for its numerous medicinal and culinary properties, and it is used in diverse food preparations for its characteristic flavour and aroma. High alliin content increases the formation of allicin, a bioactive compound of garlic. Therefore, this research aimed to compare different extraction methods for garlic (Allium sativum L.) between subcritical water extraction (SWE) and Soxhlet extraction to obtain a high extraction yield and alliin content. The SWE conditions were 120 °C and 180 °C temperatures and 2 mL/min and 6 mL/min flow rates at a constant pressure of 15 MPa for a 10 min extraction time, respectively. In the meanwhile, the extraction time for Soxhlet extraction with various solvents, namely, distilled water, ethanol–water (1:1), and 100% ethanol, was two hours. High-performance liquid chromatography (HPLC) was used to analyse alliin. Soxhlet extraction had the best yield (1.96 g) using ethanol–water (1:1) as the solvent in comparison to SWE extraction (1.28 g) at 180 °C and 6 mL/min. In contrast, SWE yielded a greater concentration of alliin (136.82 mg/g) at 120 °C and 2 mL/min than the Soxhlet method when using distilled water as the solvent (65.18 mg/g). Therefore, SWE may replace Soxhlet extraction as the conventional method for extracting alliin from garlic at a high concentration, and SWE has advantages that favour garlic extracts.

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Optimization of Supercritical Carbon Dioxide and Co-solvent Ethanol Extraction of Wasted Peanut Skin Using Response Surface Methodology

Cited by 5 publications

References 21 publications

Valorization of Peanut Skin as Agricultural Waste Using Various Extraction Methods: A Review

Valorization of Peanut Skin as Agricultural Waste Using Various Extraction Methods: A Review

Methods and Potential in Valorization of Banana Peels Waste by Various Extraction Processes: In Review

Comparison of Alliin Recovery from Allium sativum L. Using Soxhlet Extraction and Subcritical Water Extraction

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