Novel technologies applied for recovery and value addition of high value compounds from plant byproducts: A review

Ran, Xinli; Zhang, Min; Wang, Yuchuan; Adhikari, Benu

doi:10.1080/10408398.2017.1377149

Cited by 62 publications

(20 citation statements)

References 113 publications

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“…Microwave assisted extraction (MAE) can be classified as a green extraction technique since it shortens the extraction time and reduces the consumption of solvent. The principle on which MAE is based is the dielectric heating, that is the process in which a microwave electromagnetic radiation heats a dielectric material by molecular dipole rotation of the polar components present in the matrix (73) (Figure 3). MAE has been reported to proceed through several distinct steps as the result of heat and mass gradients generated into the matrix: (1) penetration of the solvent into the matrix; (2) solubilization and/or breakdown of the components; (3) transport of the solubilized compounds from the insoluble matrix to the bulk solution; (4) separation of the liquid and residual solid phase (74,75).…”

Section: Microwave Assisted Extraction (Mae)mentioning

confidence: 99%

Bioactive Phenolic Compounds From Agri-Food Wastes: An Update on Green and Sustainable Extraction Methodologies

et al. 2020

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Phenolic compounds are broadly represented in plant kingdom, and their occurrence in easily accessible low-cost sources like wastes from agri-food processing have led in the last decade to an increase of interest in their recovery and further exploitation. Indeed, most of these compounds are endowed with beneficial properties to human health (e.g., in the prevention of cancer and cardiovascular diseases), that may be largely ascribed to their potent antioxidant and scavenging activity against reactive oxygen species generated in settings of oxidative stress and responsible for the onset of several inflammatory and degenerative diseases. Apart from their use as food supplements or as additives in functional foods, natural phenolic compounds have become increasingly attractive also from a technological point of view, due to their possible exploitation in materials science. Several extraction methodologies have been reported for the recovery of phenolic compounds from agri-food wastes mostly based on the use of organic solvents such as methanol, ethanol, or acetone. However, there is an increasing need for green and sustainable approaches leading to phenolic-rich extracts with low environmental impact. This review addresses the most promising and innovative methodologies for the recovery of functional phenolic compounds from waste materials that have appeared in the recent literature. In particular, extraction procedures based on the use of green technologies (supercritical fluid, microwaves, ultrasounds) as well as of green solvents such as deep eutectic solvents (DES) are surveyed.

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Section: Microwave Assisted Extraction (Mae)mentioning

confidence: 99%

Bioactive Phenolic Compounds From Agri-Food Wastes: An Update on Green and Sustainable Extraction Methodologies

et al. 2020

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“…For this reason, it is necessary to find out effective technologies able to disrupt plant cellular integrity and assist protein extraction. To this aim, the application of different unconventional technologies, such as ultrasonication, high pressure homogenization and pulsed electric fields, has been recently proposed (Grimi et al 2014;Pojić et al 2018;Ran et al 2019;Zhang et al 2017). On the other hand, the application of these technologies is also claimed to modify the structure of food biopolymers (Knorr et al 2011) Considering proteins, the intense energy inputs delivered during the application of these technologies lead to structural modifications (i.e.…”

Section: Introductionmentioning

confidence: 99%

Understanding the impact of moderate-intensity pulsed electric fields (MIPEF) on structural and functional characteristics of pea, rice and gluten concentrates

Melchior

Calligaris

Bisson

et al. 2020

Food Bioprocess Technol

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Aim The effect of moderate-intensity pulsed electric fields (MIPEF) was evaluated on vegetable protein concentrates from pea, rice, and gluten. Methods Five percent (w/w) suspensions of protein concentrates (pH 5 and 6) were exposed to up to 60,000 MIPEF pulses at 1.65 kV/cm. Both structural modifications (absorbance at 280 nm, free sulfhydryl groups, FT-IR-spectra) and functional properties (solubility, water and oil holding capacity, foamability) were analyzed. Results MIPEF was able to modify protein structure by inducing unfolding, intramolecular rearrangement, and formation of aggregates. However, these effects were strongly dependent on protein nature and pH. In the case of rice and pea samples, structural changes were associated with negligible modifications in functional properties. By contrast, noticeable changes in these properties were observed for gluten samples, especially after exposure to 20,000 pulses. In particular, at pH 6, an increase in water and oil holding capacity of gluten was detected, while at pH 5, its solubility almost doubled. Conclusion These results suggest the potential of MIPEF to steer structure of proteins and enhance their technological functionality.

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“…The extraction process plays a crucial role in the study of porphyran, as the process parameters influence the polysaccharide yield, structure, and bioactivity [38]. Different extraction technologies, including hot water extraction, microwave-assisted extraction, ultrasonic-assisted extraction, and enzyme-assisted extraction, have been used to obtain polysaccharides from macroalgae [39,40].…”

Section: Discussionmentioning

confidence: 99%

Optimization of Porphyran Extraction from Pyropia yezoensis by Response Surface Methodology and Its Lipid-Lowering Effects

Yan

et al. 2021

Marine Drugs

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Macroalgae polysaccharides are phytochemicals that are beneficial to human health. In this study, response surface methodology was applied to optimize the extraction procedure of Pyropia yezoensis porphyran (PYP). The optimum extraction parameters were: 100 °C (temperature), 120 min (time), and 29.32 mL/g (liquid–solid ratio), and the maximum yield of PYP was 22.15 ± 0.55%. The physicochemical characteristics of PPYP, purified from PYP, were analyzed, along with its lipid-lowering effect, using HepG2 cells and Drosophila melanogaster larvae. PPYP was a β-type sulfated hetero-rhamno-galactan-pyranose with a molecular weight of 151.6 kDa and a rhamnose-to-galactose molar ratio of 1:5.3. The results demonstrated that PPYP significantly reduced the triglyceride content in palmitic acid (PA)-induced HepG2 cells and high-sucrose-fed D. melanogaster larvae by regulating the expression of lipid metabolism-related genes, reducing lipogenesis and increasing fatty acid β-oxidation. To summarize, PPYP can lower lipid levels in HepG2 cells and larval fat body (the functional homolog tissue of the human liver), suggesting that PPYP may be administered as a potential marine lipid-lowering drug.

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Novel technologies applied for recovery and value addition of high value compounds from plant byproducts: A review

Cited by 62 publications

References 113 publications

Bioactive Phenolic Compounds From Agri-Food Wastes: An Update on Green and Sustainable Extraction Methodologies

Bioactive Phenolic Compounds From Agri-Food Wastes: An Update on Green and Sustainable Extraction Methodologies

Understanding the impact of moderate-intensity pulsed electric fields (MIPEF) on structural and functional characteristics of pea, rice and gluten concentrates

Optimization of Porphyran Extraction from Pyropia yezoensis by Response Surface Methodology and Its Lipid-Lowering Effects

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