Phytochemical screening, phenolic acid profiling and antioxidant activity analysis of peels from selected mango (Mangifera spp.) genotypes in the Philippines

Ocampo, Eureka Teresa M.; Libron, Julie Ann Mher Alcances; Guevarra, M.L.D.; Mateo, J.M.C.

doi:10.26656/fr.2017.4(4).025

Cited by 11 publications

(11 citation statements)

References 27 publications

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“…To calculate the β-carotene and vitamin A content of the samples, the method described by Ocampo et al [ 26 ] was employed. Extraction was carried out in an ice bath for 5 min with a solvent:sample ratio of 1:10 g respectively, using ethanol as solvent.…”

Section: Methodsmentioning

confidence: 99%

Enhancing the Nutritional Profile of Tenebrio molitor Using the Leaves of Moringa oleifera

Kotsou

Chatzimitakos

Athanasiadis

et al. 2023

Foods

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Nowadays, more and more research is being carried out on various feeds of Tenebrio molitor larvae, in order to increase their nutritional value and render them a valuable component of the human diet. In this study, Moringa oleifera leaves were used in different proportions (up to 50%) to substitute wheat bran (the usually employed feed), in order to evaluate their effect on the growth and development of the larvae, as well as on their composition in crude protein, fat and fatty acids, ash, vitamins, and antioxidants. It was found that the addition of M. oleifera leaves in the feed had no negative impact on the development and survival of the insects, while an increase in their nutritional value was recorded. More specifically, an increase in the crude protein of up to 22.61% and vitamin C and A contents of up to 40.74% and 491.63%, respectively, was recorded. Therefore, the use of M. oleifera leaves as a feed additive is highly recommended for rearing T. molitor larvae to enhance the nutritional value of the insects.

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Section: Methodsmentioning

confidence: 99%

Enhancing the Nutritional Profile of Tenebrio molitor Using the Leaves of Moringa oleifera

Kotsou

Chatzimitakos

Athanasiadis

et al. 2023

Foods

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“…A previously described technique was used to estimate the β-carotene and Vitamin A content [29]. First, 1 g of each sample was added to the extraction stage along with 10 mL of ethanol, and the mixture was stirred at room temperature for 30 min at 300 rpm.…”

Section: β-Carotene-vitamin a Contentmentioning

confidence: 99%

Utilization of Spent Coffee Grounds as a Feed Additive for Enhancing the Nutritional Value of Tenebrio molitor Larvae

Kotsou,

Chatzimitakos,

Athanasiadis

et al. 2023

Sustainability

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Increasing demand for sustainable protein sources has spurred interest in the exploration of alternative protein sources with a reduced environmental impact. This study investigates the use of spent coffee grounds (SCG), a widely available by-product, as a feed additive for Tenebrio molitor larvae, aiming to contribute to the circular economy and enhance the nutritional quality of the insects. The larvae were fed with a mixture of bran (the conventional feed) and SCGs (10 and 25% w/w). Larval viability, growth, and nutritional composition, including protein, fat, carbohydrates, ash, carotenoids, vitamins A and C, and polyphenols, were evaluated. Increasing the proportion of SCGs in the larvae’s feed led to an enhanced nutritional value of the larvae. In particular, crude protein increased by 45.26%, vitamin C showed an increase of 81.28%, and vitamin A showed an increase of 822.79%, while polyphenol content increased by 29.01%. In addition, the oil extracted from these larvae showed enhanced nutritional value and greater resistance to oxidation. The results highlight the promising use of SCGs as a feed additive for T. molitor larvae, offering a sustainable approach to enhance their nutritional value. Delving deeper into the results, the addition of 10% SCGs resulted in a 45.26% increase in crude protein compared to the SCG0 sample. Concurrently, increasing SCGs in the dietary substrate led to an increase in vitamin content; in sample SCG25, vitamin C content increased by 81.28% while vitamin A content increased by 822.79% compared to the control sample. Moreover, there was a large increase in polyphenol content with the SCG25 sample showing the highest value, which was a 29.01% increase over the control sample.

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“…Though this study suggests anti-oxidants potential, it is suggested that at least three anti-oxidants activity assays should be conducted to determine the anti-oxidants activity of a compound to increase the validity of the experiment (Ocampo et al, 2020). Further investigations are also required to reveal other active constituents present.…”

Section: In Vitro Anti-oxidants Assaymentioning

confidence: 97%

“…Mohan et al (2013) had IC50 of 35.05 μg/mL and 32.45 μg/mL respectively when compared to ascorbic acid, which had an IC50 of 22.11 μg/mL, and Itoh et al (2020) had IC50 of 6.87 and 5.76 μg/mL respectively when compared to ascorbic acid, which had an IC50 of 1.30 μg/mL. A study by Ocampo et al (2020) also revealed that the other parts of Mangifera indica also exhibit significant anti-oxidants activity as well as the leaves, which supports the findings in this study (Ocampo et al, 2020).…”

Section: In Vitro Anti-oxidants Assaymentioning

confidence: 97%

“…Phenolic compounds are strong anti-oxidants that can prevent the tissue damage caused by the free radicals (Rupasinghe et al, 2016). Since the extracts contain a significant amount of phenol content, it might be responsible for their anti-oxidants property (Xu et al, 2008;Kumar et al, 2014;Ocampo et al, 2020). The flavonoids act through the scavenging or chelating process and help in reducing the effect of anti-oxidants (Kumar et al, 2014).…”

Section: In Vitro Anti-oxidants Assaymentioning

confidence: 99%

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Morphology, phytochemistry, and medicinal properties of South African Mangifera indica L. leaves for summer and winter seasons.

Maharaj

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Herbal preparations of plants continue to present mankind with novel remedies as many of these plants contain important secondary metabolites. Plant species of the family Anacardiaceae are rich in bioactive phytochemicals. Mangifera indica (Anacardiaceae) is an introduced and naturalised species to South Africa. Herbal use of this plant has not been fully documented; however, it is used in traditional medicine. This study aimed at characterizing the morphology, phytochemistry, and biological activity of Mangifera indica leaves harvested in winter and summer. The foliar biology of the plant was conducted by various microscopy techniques such as stereo- and Scanning electron microscopy. The length and diameter of the different trichome types were measured using ImageJ. The non-glandular trichome lengths range between 70 - 200 μm. The peltate gland trichomes consist of 2 rows of 8 oblong cells each with a size ranging from 32- 48 μm. Morphological observations using stereo- and SEM revealed the presence of non-glandular trichomes with cuticular warts and glandular peltate trichomes on the leaves of Mangifera indica. Transmission electron micrographs showed the presence of numerous mitochondria, starch grains, plastoglobuli, and plastids. The results for summer and winter leaves resembled somewhat similar-to-identical morphological characteristics on all fronts. For the phytochemical and biological assays, this study aimed to investigate some of the phytochemical and biological properties using different solvents (hexane, chloroform, and methanol) for extraction of the leaves of Mangifera indica for the summer and winter seasons. Preliminary phytochemical screening for the hexane, chloroform and methanolic extracts was done using a reflux extraction apparatus to uncover the presence of different metabolites and the anti-oxidant screening was done by the radical scavenging activity, which was established using the 2,2-diphenyl-1-picrylhydrazyl assay. Potent radical scavenging activity was exhibited for both summer and winter seasons with hexane and methanolic extracts for summer (IC50 of 19.53 μg/mL and 12.71 μg/mL respectively) and winter (22.32 μg/mL and 14.35 μg/mL respectively) in comparison to the control ascorbic acid which produced an IC50 of 3.20 μg/mL. The summer extracts had better radical scavenging IC50 capacity than winter extracts. The antibacterial activity of the methanolic leaf extracts for summer and winter of Mangifera indica were evaluated against the bacterial species: Gram-negative Escherichia coli (ATCC 25922) and Gram-positive: Staphylococcus aureus (ATCC ATCC 43300). For S. aureus (ATTC 43300), the summer crude extract displayed lower antibacterial activity than the control streptomycin, the summer extracts had a zone of inhibition of 14.17 mm while streptomycin had a 16.67 mm zone of inhibition. winter extracts had a zone of inhibition of 12 mm while streptomycin had a 13.67 mm zone of inhibition. For E. coli (ATCC 25922), the summer crude extract displayed higher antibacterial activity than the control gentamycin; the summer extract had a zone of inhibition of 18.05 mm while gentamycin had a 17.5 mm zone of inhibition. The winter extracts had a zone of inhibition of 8.5 mm. while gentamycin had a 14.5 mm zone of inhibition. Between seasons, summer had better antibacterial activity compared to winter for both Gram-positive and Gram-negative bacteria. Phytochemical screening showed the presence of phenols, flavonoids, tannins, and terpenoids, alkaloids, phytosterols, saponins, steroids, and carbohydrates. Potent radical scavenging activity was exhibited for the hexane and methanolic extracts for summer and winter, indicating that Mangifera indica is a potential source of medicinally important compounds. Antibacterial screening showed positive results with antibacterial properties for both summer and winter samples revealing its valuable biological activities. Summer overall performed better than the winter season. Future studies on this plant species are recommended to advance the use of indigenous herbal medicine or produce novel drug leads. To our knowledge, this study represents the first recent investigation in South Africa describing key foliar micromorphological features, phytochemicals, and biological activities of Mangifera indica L.

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Phytochemical screening, phenolic acid profiling and antioxidant activity analysis of peels from selected mango (Mangifera spp.) genotypes in the Philippines

Cited by 11 publications

References 27 publications

Enhancing the Nutritional Profile of Tenebrio molitor Using the Leaves of Moringa oleifera

Enhancing the Nutritional Profile of Tenebrio molitor Using the Leaves of Moringa oleifera

Utilization of Spent Coffee Grounds as a Feed Additive for Enhancing the Nutritional Value of Tenebrio molitor Larvae

Morphology, phytochemistry, and medicinal properties of South African Mangifera indica L. leaves for summer and winter seasons.

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