Current state of the art biotechnological strategies for conversion of watermelon wastes residues to biopolymers production: A review

Awasthi, Mukesh Kumar; Kumar, Vinay; Yadav, Vivek; Sarsaiya, Surendra; Awasthi, Sanjeev Kumar; Sindhu, Raveendran; Kumar, Vinod; Pandey, Ashok; Zhang, Zengqiang

doi:10.1016/j.chemosphere.2021.133310

Cited by 32 publications

(10 citation statements)

References 137 publications

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“…Similar results of compositional analysis of watermelon residue were obtained by Scapini et al ., where the lowest percentage of lignin in the biomass favored biogas production 3 . Watermelon residues have also been used to produce biopolymers, short‐chain fatty acids, phenolic compounds, and flavonoids, but there are no reports, so far, of their use to produce LA 1,23 . Research has already considered heterogeneous catalysis but this study's interest lies in using watermelon residue combined with a simple and cheap inorganic acid, which is used widely in industry.…”

Section: Resultsmentioning

confidence: 99%

“…The current economic model, designed linearly, has several distribution problems along its production chain and faces difficulties in meeting the population's needs, contributing to an imbalance in important resources and to the generation of waste. It is essential to consider replacing fossil products with materials of renewable origin, exploring new raw materials seeking ecologically sustainable processes, and reducing waste generation and environmental degradation 1,2 …”

Section: Introductionmentioning

confidence: 99%

“…It is essential to consider replacing fossil products with materials of renewable origin, exploring new raw materials seeking ecologically sustainable processes, and reducing waste generation and environmental degradation. 1,2 World organizations have been discussing the development of more sustainable production processes, especially regarding the generation of large amounts of food waste, which leads to food insecurity. The year 2021, for example, was designated by the United Nations as the International Year of Fruits and Vegetables and reinforced the importance of avoiding waste and minimizing the environmental impacts caused by the incorrect disposal of this waste.…”

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confidence: 99%

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Hydrothermal and microwave‐assisted synthesis of levulinic acid from watermelon residue

Bazoti,

Camargo,

Bonatto

et al. 2023

Biofuels Bioprod Bioref

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Levulinic acid (LA) is considered a versatile chemical building block and has emerged as one of the leading platforms for products derived from biomass. It is regarded as important from an economic perspective. The main route of synthesis to obtain LA is from the degradation of cellulose by acid catalysis, with lignocellulosic biomass being a promising and sustainable way to obtain it. In this study, for the first time, the use of watermelon residues was proposed for the synthesis of levulinic acid, adding value to a residual biomass that has still been little explored for this purpose.Watermelon residues were subjected to acid hydrolysis using H2SO4 or HCl. Two reactors were analyzed for this purpose – autoclave and microwave assisted. The experiments were optimized through a central composite design, where temperature, biomass load, and acid concentration in the microwave were evaluated as variables. In the autoclave, the variables investigated were catalyst concentration and biomass loading.The highest yields, 14.8% and 17% by weight, were obtained with solid fraction (SF) in micro wave (MW). In the best condition obtained in the central composite design, the liquid fraction (LF) and SF were analyzed. It was observed that a clean product, containing only levulinic acid and formic acid, was in the liquid fraction. The MW was more efficient and is a promising alternative for reactions requiring energy. This study contributes to an energy‐saving strategy, using waste and low‐cost catalysts, sustainably contributing to a circular carbon economy based on agricultural waste.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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Hydrothermal and microwave‐assisted synthesis of levulinic acid from watermelon residue

Bazoti,

Camargo,

Bonatto

et al. 2023

Biofuels Bioprod Bioref

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“…Consequently, there is a growing interest in the exploitation of this waste for other purposes, such as the production of bioplastics [59,60]. Thanks to their protein and polysaccharide content, indeed, eco-friendly bioplastics can be produced from renewable sources like casein [61], pear pomace and ricotta whey [62], watermelon [63], starch and sugarcane bagasse pulp [64], banana peel [65], lignin-cellulosic crop residues [66,67], soybean oil [68], grass pea [69], and algae [70]. The main polymers obtained by some FLWs are shown in Table 1.…”

Section: From Agri-food Waste To Biopolymersmentioning

confidence: 99%

Agri-Food Wastes for Bioplastics: European Prospective on Possible Applications in Their Second Life for a Circular Economy

et al. 2022

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Agri-food wastes (such as brewer’s spent grain, olive pomace, residual pulp from fruit juice production, etc.) are produced annually in very high quantities posing a serious problem, both environmentally and economically. These wastes can be used as secondary starting materials to produce value-added goods within the principles of the circular economy. In this context, this review focuses on the use of agri-food wastes either to produce building blocks for bioplastics manufacturing or biofillers to be mixed with other bioplastics. The pros and cons of the literature analysis have been highlighted, together with the main aspects related to the production of bioplastics, their use and recycling. The high number of European Union (EU)-funded projects for the valorisation of agri-food waste with the best European practices for this industrial sector confirm a growing interest in safeguarding our planet from environmental pollution. However, problems such as the correct labelling and separation of bioplastics from fossil ones remain open and to be optimised, with the possibility of reuse before final composting and selective recovery of biomass.

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“…This trend by health-conscious consumers has intrigued the need to expand the supply of fruit juices in the commercial market. Native to tropical Africa, the watermelon fruit (Citrullus lanatus) is a member of Cucurbitaceae family preferred by consumers for its sweet edible esh and juice (Awasthi et al, 2022;. Watermelon fruit is easily processed into fruit juice because of its high-water content (Bhattacharjee et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Optimization of thermosonication conditions for critical quality parameters of watermelon juice using response surface methodology

Maoto

Jideani

2023

Preprint

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The topical consumer interest for natural, healthier, safer and nutritinal juice, has intrigued the search for innovative technologies that can minimize product degradation. In this regard, thermosonication has been proposed as a potential processing technology that can inactivate microorganisms, and enzymes and produce fresh-like products. In line with this, watermelon (Citrullus lanatus) juice is one of the common fruit juices that is desired by consumers due to its desirable color, pleasant odor, sweet taste and low calories. However, this fruit juice is highly perishable and is thermo-sensitive, it degrades quickly under thermal processing. Therefore, this study aimed to identify optimal thermosonication processing conditions to retain the critical quality parameters of watermelon juice. Response surface methodology (RSM) employing a central composite design was used to determine the effects of temperature (25–52ºC), processing time (2–10 min) and amplitude level (24–60 µm) to retain the quality parameters (total polyphenolic content, lycopene, β-carotene and ascorbic acid) of watermelon juice. The optimum conditions obtained were 125ºC, 2 min, and 24 µm and were experimentally validated. These conditions resulted in lycopene of 7.4 mg/100 g, β-carotene of 0.15 mg/100 g, ascorbic acid of 2.86 mg/100 g and total polyphenolic content of 21.32 mg/100 mg/ GAE with desirability of 0.81. The proposed model was adequate (p < 0.0001) with a satisfactory determination coefficient (R2) less than 0.8 for all phytochemicals. The proposed conditions provided better preservation of the quality characteristics of watermelon juice.

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Current state of the art biotechnological strategies for conversion of watermelon wastes residues to biopolymers production: A review

Cited by 32 publications

References 137 publications

Hydrothermal and microwave‐assisted synthesis of levulinic acid from watermelon residue

Hydrothermal and microwave‐assisted synthesis of levulinic acid from watermelon residue

Agri-Food Wastes for Bioplastics: European Prospective on Possible Applications in Their Second Life for a Circular Economy

Optimization of thermosonication conditions for critical quality parameters of watermelon juice using response surface methodology

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