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Title: Optimization of Ultrasound-Assisted Extraction of Phenolic Compounds from Annona muricata By-Products and Pulp
Authors: Aguilar Hernández, Gabriela
García Magaña, María de Lourdes
Vivar Vera, María de los Ángeles
Sáyago Ayerdi, Sonia Guadalupe
Sánchez Burgos, Jorge Alberto
Morales Castro, Juliana
Anaya Esparza, Luis Miguel
Montalvo González, Efigenia
Keywords: soursop fruit
phenolic compounds
pulp and by-products
ultrasound-assisted extraction
Issue Date: Mar-2019
Publisher: MDPI
Citation: Aguilar-Hernández, G.; García-Magaña, M.d.L.; Vivar-Vera, M.d.l.Á.; Sáyago-Ayerdi, S.G.; Sánchez-Burgos, J.A.; Morales-Castro, J.; Anaya-Esparza, L.M.; Montalvo González, E. Optimization of Ultrasound-Assisted Extraction of Phenolic Compounds from Annona muricata By-Products and Pulp. Molecules 2019, 24, 904.
Series/Report no.: Molecules;2019, 24(5), 904
Abstract: Ultrasound-assisted extraction (UAE) is widely used; however, the efficiency of extraction depends on the raw materials. Therefore, optimization of UAE must be investigated for each type of plant material. By-products from soursop fruit have not been studied as a source of bioactive compounds. In this work, the optimization of UAE conditions (extraction time (5, 10, and 15 min), pulse cycle (0.4, 0.7, and 1 s), and sonication amplitude (40%, 70%, and 100%)) for the extraction of phenolic compounds (soluble, hydrolyzable, condensed tannins, and total polyphenols) from soursop by-products (seed, peel, and columella) and pulp was evaluated using response surface methodology. The optimal conditions for UAE to obtain the highest total polyphenol content from by-products and pulp was dependent on the raw material. Peel resulted in the highest content of total polyphenols (187.32 mg/g dry matter [DM]) followed by columella (164.14 mg/g DM), seed (36.15 mg/g DM), and pulp (33.24 mg/g DM). The yield of polyphenolic content from peel and columella obtained with UAE was higher (32–37%) than conventional extraction for 2 h under stirring (14–16%). The contents of gallic acid (0.36–15.86 µg/g DM), coumaric acid (0.07–1.37 µg/g DM), and chlorogenic acid (9.18–32.67 µg/g DM) in the different parts of the fruit were higher in the extracts obtained by UAE compared with a conventional extraction method (0.08–0.61, 0.05–0.08, 3.15–13.08 µg/g DM, respectively), although it was dependent on the raw materials. Soursop by-products can be functionally important if they are used to extract bioactive compounds by UAE; a technology with high potential for commercial extraction on a large scale.
Description: Artículo
ISSN: 1420-3049
Appears in Collections:3309 Artículos

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