Comparative analysis of the chemical compositions of indigenous watermelon (Citrullus lanatus) seeds from two districts in Limpopo Province, South Africa

Emmanuel, Alpheus Mogotlane; Phatlane, William Mokwala; Mangena, Phetole

doi:10.5897/ajb2018.16552

Cited by 10 publications

(5 citation statements)

References 19 publications

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“…Rekha and Rose 21 also reported that the protein was rich in arginine, glutamic acid, aspartic acid and leucine amino acids. According to Mogotlane et al 30 , the amounts of amino acids varied significantly and leucine was found to be the most abundant amino acid, threonine was the second most abundant in water melon seed followed by methionine. Usman et al 31 reported the prevalence of glutamic acid and aspartic acid in watermelon seeds.…”

Section: Resultsmentioning

confidence: 99%

Evaluation of the Medicinal Properties and Possible Nutrient Composition of Citrullus lanatus (Watermelon) Seeds

Enemor¹,

Oguazu²,

Odiakosa³

et al. 2019

Research J. of Medicinal Plants

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Background and Objective: In countries where cultivation of Citrullu slanatus (watermelon) is on the increase, watermelon is known to have invaluable benefits. Watermelon seeds are often discarded while the fleshy fruit is eaten. This study aimed at determining the medicinal and nutritive bioactive components of Citrullus lanatus through proximate, mineral, vitamin, amino acid and phytochemical analysis. Materials and Methods: In this study, seeds of watermelon were analyzed for proximate, minerals, phytochemicals and vitamin content. The proximate analysis, minerals content, vitamins, amino acids and phytochemicals screening were performed using standard guideline of AOAC, GC-MS, AAS, HPLC and the statistical analysis was carried out using the Microsoft excel software 2010 version. Results: The proximate analysis results indicated that the watermelon seeds had moisture 48.7%, ash content 0.96%, fat 22.77%, carbohydrate 13.99% and protein content 8.9%. The amino acid profile showed the seeds were rich in phenylalanine, arginine, valine, glutamate and serine content. Vitamins A and C at 68.13 and 19.45 mg kgG 1 , respectively were the most abundant vitamins in the seeds. The seeds also contained appreciable mineral elements such as; Fe, Mg, Na and K with K (18.189 ppm) being the highest. The phytochemistry of the samples showed a lot of compounds with known medicinal effects. Conclusion: The present findings suggested watermelon seeds as considerable source of nutrients in the diet and may have health and economic benefits due to its vitamins, minerals and phytochemicals with high level of antioxidant activities and consequently a very useful potential nutraceutical.

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Section: Resultsmentioning

confidence: 99%

Evaluation of the Medicinal Properties and Possible Nutrient Composition of Citrullus lanatus (Watermelon) Seeds

Enemor¹,

Oguazu²,

Odiakosa³

et al. 2019

Research J. of Medicinal Plants

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“…Besides the fruit flesh, antioxidant compounds have been found in other organs of Citrullus spp. In watermelon seeds, Emmanuel et al [73] found that flavonoid content was in the range of 0.015 to 0.347 mg CE/g FW, while Adetutu et al [63] reported 0.05 mg quercetin equivalent (QE)/g FW of flavonoids. Seeds of C. colocynthis are also a source of valuable compounds, and the content of antioxidant varies among cultivars [35,74].…”

Section: Citrullusmentioning

confidence: 99%

Genetic and Pre- and Postharvest Factors Influencing the Content of Antioxidants in Cucurbit Crops

2021

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Cucurbitaceae is one of the most economically important plant families, and includes some worldwide cultivated species like cucumber, melons, and squashes, and some regionally cultivated and feral species that contribute to the human diet. For centuries, cucurbits have been appreciated because of their nutritional value and, in traditional medicine, because of their ability to alleviate certain ailments. Several studies have demonstrated the remarkable contents of valuable compounds in cucurbits, including antioxidants such as polyphenols, flavonoids, and carotenoids, but also tannins and terpenoids, which are abundant. This antioxidant power is beneficial for human health, but also in facing plant diseases and abiotic stresses. This review brings together data on the antioxidant properties of cucurbit species, addressing the genetic and pre- and postharvest factors that regulate the antioxidant content in different plant organs. Environmental conditions, management, storage, and pre- and postharvest treatments influencing the biosynthesis and activity of antioxidants, together with the biodiversity of this family, are determinant in improving the antioxidant potential of this group of species. Plant breeding, as well as the development of innovative biotechnological approaches, is also leading to new possibilities for exploiting cucurbits as functional products.

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“…Over the years, there has been an astronomical rise in prices of these commonly used oil crops, hence there is need to source for oils from underutilized or lesser known oilseeds that available to reverse the upward trend in the prices of these essential commodities. This would result in the utilisation of food-processing by-products and wastes, as well as underutilised agricultural products receiving more attention [2]. Such utilisation would contribute to maximising the available resources and result in the production of various products and foods [3].…”

Section: Introductionmentioning

confidence: 99%

Varietal Differences in the Oil Composition of the Seed of Two Indigenous Chrysophyllum albidium Species

Bello

Muniru

Igwe

2019

AJACR

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Aim: To investigate the varietal difference in the composition of the oil of two Chryosophyllum albidium species. Study Design: Laboratory experimental design was used. Place and Duration of Study: Chryosophyllum acreanum and Chrysophyllum africana seed species of Chrysophyllum albidium were collected from Oja Oba market, Ibadan, Oyo State. The study was carried out between February 2019 - August 2019 at the Oilseed Laboratory of Federal Institute of Industrial Research, Oshodi, Lagos State, Nigeria. Methodology: Oil in both seeds was extracted using Soxhlet extraction method. The physical and chemical properties of the oils were determined using official methods of analysis while the fatty acid composition of the seed oils was analysed using Gas Chromatography- Mass Spectrophotometer. Results: The oil yield for both seeds was low, 3.52% for C. acreanum and 3.75% for C. africana. The values for the physical properties (Specific gravity, refractive index and unsaponifiable matter) of C. acreanum seed oil were higher than for C. africana seed oil. The chemical properties shows that the acid and peroxide values are 2.79mgKOH/g; 2.67mgKOH/g, 1.78mEq/kg; 1.63mEq/kg for C. acreanum and C. africana seed oil respectively while the iodine values for both seed oils are below 100mgI2/100g. The fatty acid composition shows that both seed oil contains myristic acid as their major fatty acid. Conclusion: The evaluated characteristics of the seed oils showed that there is no significant differences in the oil composition of C. albidium seed varieties as the oil composition are closely related except for the slight difference in their fatty acid profile.

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Comparative analysis of the chemical compositions of indigenous watermelon (Citrullus lanatus) seeds from two districts in Limpopo Province, South Africa

Cited by 10 publications

References 19 publications

Evaluation of the Medicinal Properties and Possible Nutrient Composition of Citrullus lanatus (Watermelon) Seeds

Evaluation of the Medicinal Properties and Possible Nutrient Composition of Citrullus lanatus (Watermelon) Seeds

Genetic and Pre- and Postharvest Factors Influencing the Content of Antioxidants in Cucurbit Crops

Varietal Differences in the Oil Composition of the Seed of Two Indigenous Chrysophyllum albidium Species

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