scholarly journals Valorization of seabuckthorn pomace to obtain bioactive carotenoids: An innovative approach of using green extraction techniques (ultrasonic and microwave-assisted extractions) synergized with green solvents (edible oils)

2022 ◽  
Vol 175 ◽  
pp. 114257
Author(s):  
Minaxi Sharma ◽  
Shehzad Hussain ◽  
Tatsiana Shalima ◽  
Riina Aav ◽  
Rajeev Bhat
Keyword(s):  
Edible Oils ◽  
Innovative Approach ◽  
Green Solvents ◽  
Extraction Techniques ◽  
Green Extraction ◽  
Microwave Assisted

scholarly journals Extraction of Carotenoids from Pumpkin Peel and Pulp: Comparison between Innovative Green Extraction Technologies (Ultrasonic and Microwave-Assisted Extractions Using Corn Oil)

Foods ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 787
Author(s):  
Minaxi Sharma ◽  
Rajeev Bhat
Keyword(s):  
Corn Oil ◽  
Antioxidant Activities ◽  
Food Product ◽  
Extraction Techniques ◽  
Protection Factor ◽  
Total Carotenoids ◽  
Green Extraction ◽  
Microwave Assisted ◽  
Potential Applications ◽  
Conventional Extraction

Natural pigments improve aesthetic value as well as antioxidant potential of a food product. This study was designed to determine the effects of green extraction techniques on carotenoids, polyphenols and antioxidant activities of pulp and peel of two varieties of pumpkin (Cucurbita maxima). Innovative green extractions (IGE; Ultrasound and Microwave-Assisted Extractions) synergised with corn oil (used as green solvent) were compared with conventional extraction (CE; hexane/isopropyl alcohol; 60:40, v/v). Results showed total carotenoids to be almost double on employing IGE (PM2-UAE-peel = 38.03 ± 4.21; PM4-UAE-peel = 33.78 ± 1.76 µg/g) when compared to conventional extraction (PM2-CE-peel = 19.21 ± 4.39; PM4-CE-peel = 16.21 ± 2.52 µg/g). Polyphenolic contents ranged between 510.69 ± 5.50 and 588.68 ± 7.26 mg GAE/100 g of extract in IGE, compared with conventional extracts (269.50 ± 2.17 to 318.46 ± 6.60 mg GAE/100 g) and percent inhibition of 2,2-Diphenyl-1-picrylhydrazyl (DPPH) ranging between 88.32 ± 1.51 and 93.53 ± 0.30% in IGE when compared with conventional extraction (50.61 ± 1.44 to 57.79 ± 2.09%). Further, oxidative stability of carotenoids extracts from IGE (protection factor = 1.59 ± 0.01 to 1.81 ± 0.05) were found to be significantly higher (p < 0.05) than conventional extracts. Based on results, this study supports the use of innovative green extraction techniques to obtain bioactive pigments like carotenoids. It is anticipated that results generated will find potential applications in food, pharmaceutical and cosmetic industries.

scholarly journals Artichoke Biorefinery: From Food to Advanced Technological Applications

Foods ◽  
2021 ◽  
Vol 10 (1) ◽  
pp. 112
Author(s):  
Matteo Francavilla ◽  
Mauro Marone ◽  
Paolo Marasco ◽  
Francesco Contillo ◽  
Massimo Monteleone
Keyword(s):  
Circular Economy ◽  
Green Manure ◽  
Extraction Process ◽  
Second Step ◽  
Plant Residues ◽  
Globe Artichoke ◽  
Green Solvents ◽  
Extraction Techniques ◽  
Microwave Assisted ◽  
Closing The Loop

A sequential extraction process has been designed for valorizing globe artichoke plant residues and waste (heads, leaves, stalks, and roots left in the field) by means of green extraction techniques according to a biorefinery approach. We investigated two cascading extractions based on microwave-assisted extractions (MAE) and green solvents (water and ethanol) that have been optimized for varying temperature, solvent and extraction time. In the first step, phenols were extracted with yields that ranged between 6.94 mg g−1 dw (in leaves) and 3.28 mg g−1 dw (in roots), and a phenols productivity of 175.74 Kg Ha−1. In the second step, inulin was extracted with impressive yields (42% dw), higher than other conventional inulin sources, corresponding to an inulin productivity of 4883.58 Kg Ha−1. The remaining residues were found to be valuable feedstocks both for bioenergy production and green manure (back to the field), closing the loop according to the Circular Economy paradigm.

Green Solvents for Edible Oils Extraction

Edible Oils ◽  
2017 ◽  
pp. 51-70
Author(s):  
Moussa Sehailia ◽  
Smain Chemat
Keyword(s):  
Edible Oils ◽  
Green Solvents

scholarly journals Recent Trends in Extraction Techniques for High Value Compounds from Algae as Food Additives

2018 ◽  
Vol 6 (8) ◽  
pp. 1008 ◽  
Author(s):  
Saniye Akyil ◽  
Işıl İlter ◽  
Mehmet Koç ◽  
Figen Ertekin
Keyword(s):  
Subcritical Water ◽  
Food Additives ◽  
Process Conditions ◽  
Extraction Techniques ◽  
Subcritical Water Extraction ◽  
Ultrasound Assisted Extraction ◽  
Algae Biomass ◽  
Green Extraction ◽  
Advantages And Disadvantages ◽  
Assisted Extraction

Algae have been considered as a source of high value bioactive compounds including pigments, lipids, fatty acids, polysaccharides, antioxidants and minerals. These compounds serve as a source of nutrition for both humans and animals and as additives in food production. Conventional solvent and/or green extraction techniques are mostly applied to extract these compounds from algae biomass. In this review, paper the most frequently used green extraction techniques such as supercritical fluid extraction, microwave assisted extraction, ultrasound-assisted extraction, pressurized liquid extraction, subcritical water extraction and pulsed electric field extraction were investigated in terms of their process conditions, applications, advantages and disadvantages.

scholarly journals Green Approaches to Sample Preparation Based on Extraction Techniques

Molecules ◽  
2020 ◽  
Vol 25 (7) ◽  
pp. 1719 ◽  
Author(s):  
Alshymaa Aly ◽  
Tadeusz Górecki
Keyword(s):  
Sample Preparation ◽  
Analytical Method ◽  
Bioanalytical Chemistry ◽  
Complete Elimination ◽  
Extraction Techniques ◽  
Green Extraction ◽  
Crucial Step ◽  
Recent Developments ◽  
Environmentally Friendly Approach ◽  
No Sample Preparation

Preparing a sample for analysis is a crucial step of many analytical procedures. The goal of sample preparation is to provide a representative, homogenous sample that is free of interferences and compatible with the intended analytical method. Green approaches to sample preparation require that the consumption of hazardous organic solvents and energy be minimized or even eliminated in the analytical process. While no sample preparation is clearly the most environmentally friendly approach, complete elimination of this step is not always practical. In such cases, the extraction techniques which use low amounts of solvents or no solvents are considered ideal alternatives. This paper presents an overview of green extraction procedures and sample preparation methodologies, briefly introduces their theoretical principles, and describes the recent developments in food, pharmaceutical, environmental and bioanalytical chemistry applications.

scholarly journals Evaluation of Microwave-Assisted Extraction for the Analysis of Polychlorinated Biphenyls and Organochlorine Pesticides in Fish

2008 ◽  
Vol 91 (5) ◽  
pp. 1124-1129 ◽  
Author(s):  
Takamitsu Otake ◽  
Yoshie Aoyagi ◽  
Masahiko Numata ◽  
Takashi Yarita
Keyword(s):  
Polychlorinated Biphenyls ◽  
Organochlorine Pesticides ◽  
Soxhlet Extraction ◽  
Liquid Extraction ◽  
Isotope Dilution Method ◽  
Dilution Method ◽  
Microwave Assisted Extraction ◽  
Extraction Techniques ◽  
Microwave Assisted ◽  
Assisted Extraction

Abstract The efficiency of microwave-assisted extraction (MAE) was evaluated for the analysis of polychlorinated biphenyls (PCBs) and organochlorine pesticides (OCPs) in fish. An isotope dilution method was used for quantification via analysis of the samples by gas chromatography and mass spectrometry. MAE solvent, temperature, and time were optimized, and observed concentrations were compared. The MAE results were also compared to those of other extraction techniques (Soxhlet extraction, pressurized liquid extraction, saponification, and homogenization). Concentrations of PCBs and OCPs obtained by MAE at 120C for 10 min were comparable to those by the other techniques. The results suggest that MAE can be used for the analysis of PCBs and OCPs in fish.

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