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Keywords = giant granadilla

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16 pages, 2621 KiB  
Article
Nanoemulsions Containing Passiflora quadrangularis L. Fruit Extracts for Cosmetic Application and Skin Efficacy Study
by Nareekan Yanasan, Worrapon Wangkananon, Surapol Natakankitkul and Kanokwan Kiattisin
Cosmetics 2024, 11(2), 57; https://doi.org/10.3390/cosmetics11020057 - 4 Apr 2024
Cited by 9 | Viewed by 3872
Abstract
This study aimed to determine the anti-collagenase, anti-elastase, and anti-hyaluronidase activities of Passiflora quadrangularis fruit extracts (epicarp, mesocarp, endocarp, and seed), develop stable nanoemulsions, and evaluate the efficacy of the nanoemulsions containing extracts in human volunteers. The results indicated that the epicarp and [...] Read more.
This study aimed to determine the anti-collagenase, anti-elastase, and anti-hyaluronidase activities of Passiflora quadrangularis fruit extracts (epicarp, mesocarp, endocarp, and seed), develop stable nanoemulsions, and evaluate the efficacy of the nanoemulsions containing extracts in human volunteers. The results indicated that the epicarp and seed extracts exhibited collagenase, elastase, and hyaluronidase inhibition effects. Gallic acid was identified in the extracts, with the highest concentration found in the endocarp extract (1449.35 mg gallic acid/g extract) followed by the seed extract (839.63 mg gallic acid/g extract). The endocarp and seed extracts demonstrated good stability at different temperatures. Consequently, these extracts were selected for incorporation into nanoemulsions due to their high yield, excellent anti-tyrosinase and anti-aging activity, and good stability, making them suitable for cosmetic products. The nanoemulsions were prepared using the ultrasonication method, resulting in a particle size of 133.1 ± 0.8 nm, a polydispersity index of 0.33 ± 0.03, and a zeta potential of −61.8 ± 0.6 mV, indicating good stability. The nano-serum containing extracts was non-irritating and safe for the skin. Skin evaluation among human volunteers after 60 days of application revealed improvements in skin hydration and reduction in wrinkles. In conclusion, nanoemulsions containing P. quadrangularis fruit extracts have the potential to be effective cosmetic products. Full article
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14 pages, 929 KiB  
Article
Chemical Composition and Antioxidant Activity of the Main Fruits Consumed in the Western Coastal Region of Ecuador as a Source of Health-Promoting Compounds
by Mabel Guevara, Eduardo Tejera, María G. Granda-Albuja, Gabriel Iturralde, Maribel Chisaguano-Tonato, Silvana Granda-Albuja, Tatiana Jaramillo-Vivanco, Francesca Giampieri, Maurizio Battino and José M. Alvarez-Suarez
Antioxidants 2019, 8(9), 387; https://doi.org/10.3390/antiox8090387 - 10 Sep 2019
Cited by 44 | Viewed by 6394
Abstract
We studied 19 different tropical fruits traditionally consumed in the coastal lowlands of Ecuador to determine their chemical composition and antioxidant activity. Carambola (Averrhoa carambola L.) had the highest total phenolic, flavonoid, and total antioxidant capacity values, whereas guava fruits (Psidium [...] Read more.
We studied 19 different tropical fruits traditionally consumed in the coastal lowlands of Ecuador to determine their chemical composition and antioxidant activity. Carambola (Averrhoa carambola L.) had the highest total phenolic, flavonoid, and total antioxidant capacity values, whereas guava fruits (Psidium guajava L.) had the highest vitamin C values. The main organic acids identified were lactic, citric, and acetic acids, and the highest amount of lactic acid was found in soursop fruits (Annona muricata L.), whereas Ecuadorian ivory palm (Phytelephas aequatorialis Spruce) and guava fruits had the highest acetic acid content. Guava also had the highest citric acid content; the highest concentration of oxalic acid was found in carambola. In terms of sugar content, giant granadilla (Passiflora quadrangularis L.) had the highest values of glucose, and red mombin (Spondias mombin L.) had the largest values for fructose and guava for sucrose. Chili pepper (Capsicum chinense Jacq) proved to be the main source of carotenoids, lutein, and β-carotene, anthocyanins, and vitamin C. The results here increase our knowledge regarding the composition of the main fruits consumed on the west coast of Ecuador to facilitate recommendations as potential sources of health-promoting compounds. Full article
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