Natural Antioxidant Potential of Melon Peels for Fortified Foods

Vella, Filomena Monica; Calandrelli, Roberto; Cautela, Domenico; Laratta, Bruna

doi:10.3390/foods12132523

Cited by 3 publications

(1 citation statement)

References 41 publications

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“…Currently, there is limited review addressing the weight of visible fine dirt on fruit's external peels, making comparison difficult. However, previous research by Elhassaneen et al (2022) and Vella et al (2023) claims that fine dirt is commonly found on fruit external peel. Therefore, it is recommended to thoroughly wash the fruits with water to remove any dust, sand, wax or pesticide residue that may be present.…”

Section: Weight Of Visible Fine Dirt (Mg)mentioning

confidence: 93%

Investigating Potential Sources of Sore Throat: Physico-Chemical Attributes and Microbial Contamination in Rambutan from Fresh Harvests and Retail Stores

Izhar,

Zubairi,

Nurzahim

et al. 2024

JSM

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Rambutan (Nephelium lappaceum), a tropical fruit cherished for its succulent flesh and vibrant appearance, is cultivated extensively across various regions worldwide. However, despite its popularity, the fruit faces challenges related to particulate contamination during the harvesting process. Particulate matter contamination refers to the presence of solid or liquid particles suspended in the air or adhered to the fruit's surface, posing potential risks to both consumer health and fruit quality. Hence, this study aims to identify the factors in rambutan that could cause sore throats by analysing its physicochemical properties and conducting a microbiological study. For this study, two samples of rambutan fruit which are rambutan sold in stores (RS) and rambutan freshly harvested from the tree (RT) were collected and analysed for their external peel, internal peel, and pulp parts (n = 3). The assessment included the weight of visible fine dirt, pH value, oil content, surface morphology and total coliform (TPC). The results showed that the weight of visible fine dirt on RT external peel (93.50 ± 5.00 mg) and the pH value of its external peel and pulp (4.17 ± 0.00 - 5.17 ± 0.00) were significantly higher and more acidic (p<0.05) than those of RS. However, there were insignificant differences (p>0.05) in oil content (0.36 ± 0.7 - 0.38 ± 0.8%) between the external peels of the rambutan samples. Additionally, the surface morphology and image analysis of RS showed more foreign particles, represented as black or white dots on its internal peel and pulp, compared to RT, which was suspected to be yeast. Moreover, the total coliform count for both samples was significantly different (p<0.05) in their external peel and pulp, but it was still within the safe eating limit. The study concluded that environmental pollution and contamination during rambutan handling could cause sore throat.

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Section: Weight Of Visible Fine Dirt (Mg)mentioning

confidence: 93%

Investigating Potential Sources of Sore Throat: Physico-Chemical Attributes and Microbial Contamination in Rambutan from Fresh Harvests and Retail Stores

Izhar,

Zubairi,

Nurzahim

et al. 2024

JSM

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Genome-Wide Identification and Expression Analysis of the CmHAK Gene Family in Melon (Cucumis melo L.)

Fu,

Wang,

Leng

et al. 2023

Horticulturae

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(1) Background: As the largest family of potassium transporters in plants, KT/HAK/KUP plays an important function in plant growth, development, and stress, especially for potassium-loving plants such as melon. (2) Methods: The members of the KT/HAK/KUP gene family in the melon genome were identified by bioinformatics technology. The gene structure, chromosome location, phylogeny, and expression analysis were comprehensively and systematically analyzed. (3) Results: The results showed that there are 14 members of the KT/HAK/KUP gene family in melon, which are distributed on seven chromosomes. Each member contains 3–11 introns and 4–12 exons, and could be divided into three distinct branches in phylogeny. The number of amino acid residues encoded by each member varies between 610 and 878. In terms of expression, after 12 h of chilling stress, most of the CmHAK genes were expressed in two melon varieties with different chilling resistances. The expression levels of CmHAK6 and CmHAK8 were downregulated in chilling-resistant varieties, but there was no significant change in chilling-sensitive varieties, indicating that CmHAK6 and CmHAK8 genes may play a negative regulatory role in chilling-resistant varieties. (4) Conclusions: The study provides a theoretical basis for in-depth analysis of the functions of KT/HAK/KUP gene family and cultivation of high-potassium stress-resistant melon varieties.

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Exploring Varied (Green) Extraction Methods to Optimize Galia Melon Peel Antioxidant Potential

Dimtsas,

Douma,

Soukia

et al. 2024

Separations

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Cucumis melo L. (C. melo), commonly known as the melon, is a widely cultivated tropical fruit associated with nutritional benefits and bioactive properties. With global production reaching 40 million tons annually, the fruit processing industry generates significant waste, primarily peels, totaling 8 to 20 million tons yearly. These organic by-products are rich in bioactive compounds such as antioxidants, offering health benefits such as a reduced risk of cancer and cardiovascular diseases, as well as of diabetes and neurogenerative diseases, offering an opportunity for sustainable utilization. C. melo by-products have demonstrated various health benefits, including anti-inflammatory, analgesic, and antioxidant properties, attributed mainly to polyphenols. Recognizing the potential of melon waste, this study systematically explored different extraction methods, including stirring (ST), ultrasound (US), and pulsed electric field (PEF) methods, while considering factors such as extraction time, temperature, and solvent composition. The primary goal was to identify the most effective extraction procedures and optimal conditions for maximizing the yield of total polyphenols and antioxidant capacity (using the FRAP and DPPH methods) from C. melo peel by-products. According to the results, the optimum conditions include ST as the extraction method, an ethanolic solvent with a strength of 50%, a 150 min extraction duration, and an 80 °C extraction temperature. The maximum values of total polyphenols that can be observed are 3.75 mg gallic acid equivalents (GAE)/g of dry weight (dw) and 25.77 μmol ascorbic acid equivalents (AAE)/g dw and 34.44 μmol AAE/g dw from FRAP and DPPH antioxidant assays, respectively. The polyphenols identified were the following: gallic acid, neochlorogenic acid, catechin, chlorogenic acid, epicatechin, and kaempferol. By securing the maximum isolation of bioactive content and antioxidant activity, the research will contribute to sustainable waste management by reducing waste and developing value-added products.

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Natural Antioxidant Potential of Melon Peels for Fortified Foods

Cited by 3 publications

References 41 publications

Investigating Potential Sources of Sore Throat: Physico-Chemical Attributes and Microbial Contamination in Rambutan from Fresh Harvests and Retail Stores

Investigating Potential Sources of Sore Throat: Physico-Chemical Attributes and Microbial Contamination in Rambutan from Fresh Harvests and Retail Stores

Genome-Wide Identification and Expression Analysis of the CmHAK Gene Family in Melon (Cucumis melo L.)

Exploring Varied (Green) Extraction Methods to Optimize Galia Melon Peel Antioxidant Potential

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