Valorization of papaya fruit waste through low-cost fractionation and microbial conversion of both juice and seed lipids

Han, Zhenlin; Park, Alex; Su, Wei

doi:10.1039/c8ra05539d

Cited by 14 publications

(7 citation statements)

References 40 publications

(59 reference statements)

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“…8,52,53 Although reported differently by different researchers, this accounts for nearly half of the fruit by weight. For instance, the findings of Han et al, 13 found that papaya fruit processing generates a large amount of papaya waste in which seed waste constitutes up to 30% of the papaya by volume. With increased fruit processing, production, and culling of poor-grade, fruit juice, industries generate huge amounts of residues that account for up to 60% of the fruit mass and are frequently discarded, although they contain many essential compounds used as food ingredients and in multi-mixture formulas.…”

Section: Tropical Fruit-processing Waste/ Byproducts and Compositionmentioning

confidence: 99%

“…and Suri et al ., 12 reported 60–70%. Today, the management of waste is a major threat all around the world 13 . Unless this waste is properly managed, it will become a major menace all over the world by polluting environmental resources (air, soil, and water) 14 and increasing the economic costs associated with its transportation and handling in landfills 15,16 .…”

Section: Introductionmentioning

confidence: 99%

“…Today, the management of waste is a major threat all around the world. 13 Unless this waste is properly managed, it will become a major menace all over the world by polluting environmental resources (air, soil, and water) 14 and increasing the economic costs associated with its transportation and handling in landfills. 15,16 Beyond the environmental and economic impacts, 17 poor waste management also poses significant health impacts, such as outbreaks of different kinds of water-borne diseases (diarrhea, cholera, etc.…”

Section: Introductionmentioning

confidence: 99%

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Valorization of tropical fruit‐processing wastes and byproducts for biofuel production

Gebre,

Gebremariam,

Keneni

et al. 2023

Biofuels Bioprod Bioref

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Global energy demand is expanding due to an increasing population and the use of energy‐intensive technologies. Fossil‐based energy and transportation sectors have been blamed for greenhouse gas emissions and price fluctuations. Biofuel production has been suggested as a possible solution to this problem, despite the cost of production and difficulties with the availability of feedstocks, and the food versus energy debate, which is still a challenging issue. For many decades, researchers have been investigating how to valorize low‐cost and non‐edible biomass resources, including fruit‐processing waste and its byproducts, to produce various biofuels using innovative, cost‐effective, and green technologies to overcome these challenges. However, exhaustive studies and comprehensive and structured knowledge related to the biofuel production potential of fruit waste and byproducts are lacking because most of the research that has been done so far was specific to a single fruit, location, and method. As a result, this review paper emphasizes the evaluation of the physicochemical compositions of the wastes and byproducts derived from tropical fruit production and processing to determine their suitability in the production of different biofuels via various valorization techniques. The results of the review showed that fruit waste is a potential alternative raw material for producing different biofuels, like biodiesel, biogas, biohydrogen, and fuel pellets.

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Section: Tropical Fruit-processing Waste/ Byproducts and Compositionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Valorization of tropical fruit‐processing wastes and byproducts for biofuel production

Gebre,

Gebremariam,

Keneni

et al. 2023

Biofuels Bioprod Bioref

View full text Add to dashboard Cite

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“…Most of these studies (e.g., seven) use hydrophobic/oily waste streams [47][48][49][50][51][52][53][54], six refer to crude glycerol [48,51,53,[55][56][57], four to agro-industrial and food waste hydrolysates [58][59][60][61], and three to various agro-industrial waste streams including: mango wastes [62], sugarcane molasses [63], and papaya [54]. Various wild and engineered yeast strains were tested for the production of many different products including: SCP [47,50,53,56], biolipids [47][48][49][50][51][52]59,61], organic acids (mainly citric and succinic) [47,55,56,58,60], and enzymes (mainly lipases) [48,53,54,62]. Although most of the studies are focused on other high-value products apart from SCP, the yeast biomass, after recovery of the main product of interest (e.g., biolipids), would still contain high protein content, rendering it useful as supplement in animal feed.…”

Section: Yarrowia Lipolytica Cultivation On Low-cost Awcbsmentioning

confidence: 99%

Sustainable Animal Feed Protein through the Cultivation of YARROWIA Lipolytica on Agro-Industrial Wastes and by-Products

Patsios

Dedousi²,

Sossidou³

et al. 2020

Sustainability

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Proteins are essential constituents of animal feeds, which comprise mainly vegetable protein (e.g., soybean meal), which is produced and transported globally. The decoupling of protein-production and livestock-growth areas results in protein deficiencies in certain parts of the world, and in significant environmental stress. Alternative, more sustainable protein feeds are necessary to meet the increasing needs, and to decrease the environmental footprint of animal products. Yeast Single Cell Proteins (SCP), produced locally using various agro-industrial by-product streams, have significant potential as alternative animal feed protein. Particularly, Yarrowia lipolytica, an oleaginous, non-pathogenic microorganism has been characterized as a “workhorse” in biotechnological studies, drawing the attention of many researchers. The present review summarizes available resources on critical issues concerning the applicability and commercialization of Yarrowia lipolytica as an environment-friendly protein source for animal feed. It discusses the sustainability of the yeast SCP production process, it presents the recent advances concerning Yarrowia lipolytica cultivation on low-cost agro-industrial by-products, and it stresses the effects on the health and welfare of productive animals due to the inclusion of Yarrowia lipolytica in their diet. The data presented in this study should facilitate relative research advancement and the commercialization of Yarrowia lipolytica’s use as an alternative protein source/supplement for animal feeds.

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“…Papaya (Carica papaya) seeds represent an abundant, secure and stable waste material from papaya processing 10 which contain benzyl glucosinolate (BG), the major one present. 11 Glucosinolates are metabolized to yield isothiocyanates by the action of enzymes commonly called myrosinases, [12][13][14][15] that are brought into contact with their substrate(s) upon damage to seeds in which they are found (Scheme 1).…”

Section: Introductionmentioning

confidence: 99%

Revisiting the Nucleophilicity Concept in a Comprehensive Biomass Valorization Experiment: From Papaya Seeds to Thiourea Motifs

et al. 2019

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The recovery of waste materials with potential for synthetic transformations is a major field in science. However, just few experiments have been devoted to undergraduate students by exploring some consistent subjects in light of simple, natural resources. Nucleophilicity is a central subject in chemistry and there are significant synthetic models to exploit it in contrast to basicity. Here we present a laboratory experiment that utilizes hands-on research to be implemented in an organic chemistry lab by using benzyl isothiocyanate (BITC) from papaya seeds as raw material for the preparation of thioureas in a fast and visually indicative experiment. Subjects such as green chemistry, extraction methods, nucleophilicity, chromatography and NMR spectroscopy can be emphasized in order to implement a project-based approach. This experiment shows flexibility concerning the procedures and the use of biomass raw materials towards the reinforcement of a research-like experience and critical-thinking skills.

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Valorization of papaya fruit waste through low-cost fractionation and microbial conversion of both juice and seed lipids

Abstract: Seed oil from papaya waste was validated as a novel carbon substrate for Yarrowia lipolytica to produce high-value products.

Cited by 14 publications

References 40 publications

Valorization of tropical fruit‐processing wastes and byproducts for biofuel production

Valorization of tropical fruit‐processing wastes and byproducts for biofuel production

Sustainable Animal Feed Protein through the Cultivation of YARROWIA Lipolytica on Agro-Industrial Wastes and by-Products

Revisiting the Nucleophilicity Concept in a Comprehensive Biomass Valorization Experiment: From Papaya Seeds to Thiourea Motifs

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