Dataset Information

Goats' Feeding Supplementation with Acacia farnesiana Pods and Their Relationship with Milk Composition: Fatty Acids, Polyphenols, and Antioxidant Activity.

ABSTRACT: BACKGROUND:Research efforts have focused on the evaluation of the bioactive quality of animal products (milk, cheese, meat, and other by-products) contrasting various feeding strategies coming from different ecological zones. The study aimed to describe the fatty acids (FA), polyphenols (P), bioactive compounds (BC), and antioxidant activity (AA) of goat's milk. METHODS:Dairy goats were fed with five systems: (1) Grazing; (2) conventional diet (CD); (3) CD + 10% of Acacia farnesiana (AF) pods; (4) CD + 20% AF; and (5) CD + 30% AF. The fatty acid profile, health promoting and thrombogenic indexes were calculated. Milk extracts were evaluated by HPLC to determent phenolic compounds (gallic, caffeic, chlorogenic, and ferulic acids, catechin, epicatechin, and quercetin). Antioxidant activity of goat's milk extract was evaluated using 2,2-diphenyl-1-picrylhydrazyl radical (DPPH•), oxygen radical absorbance capacity (ORAC), and the ferric reducing antioxidant power (FRAP) assays. RESULTS:Conventional diet showed the highest content of polyunsaturated fatty acids while grazing showed the best n-6:n-3 and the linoleic:alpha linolenic acid ratio. Similarly, grazing and AF boosted the polyphenol content. CONCLUSIONS:Acacia farnesiana inclusion in the goats' diets increased the presence of bioactive compounds and the antioxidant activity while diminishing the cholesterol content of goat's milk.

SUBMITTER: Delgadillo-Puga C

PROVIDER: S-EPMC6720175 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature

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Goats' Feeding Supplementation with <i>Acacia farnesiana</i> Pods and Their Relationship with Milk Composition: Fatty Acids, Polyphenols, and Antioxidant Activity.

Delgadillo-Puga Claudia C Cuchillo-Hilario Mario M León-Ortiz Luis L Ramírez-Rodríguez Amairani A Cabiddu Andrea A Navarro-Ocaña Arturo A Morales-Romero Aurora Magdalena AM Medina-Campos Omar Noel ON Pedraza-Chaverri José J

Animals : an open access journal from MDPI 20190801 8

<h4>Background</h4>Research efforts have focused on the evaluation of the bioactive quality of animal products (milk, cheese, meat, and other by-products) contrasting various feeding strategies coming from different ecological zones. The study aimed to describe the fatty acids (FA), polyphenols (P), bioactive compounds (BC), and antioxidant activity (AA) of goat's milk.<h4>Methods</h4>Dairy goats were fed with five systems: (1) Grazing; (2) conventional diet (CD); (3) CD + 10% of <i>Acacia farne ...[more]

PMID: 31374913

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Project description:BackgroundContamination of drinking water with heavy metals poses a human health threat, particularly in low-income countries where point-of-use water purification systems are beyond the reach of a majority of households.ObjectivesThe study was undertaken to evaluate the efficacy of Acacia galpinii (monkey thorn tree) biomass in removing lead (Pb (ll)), cadmium (Cd (ll)), calcium (Ca (ll)), and magnesium (Mg (ll)) ions from drinking water.MethodsA. Galpinii biomass from seed and seed pods was processed by pulverizing, Soxhlet oil extraction and particle size grading. The material was analyzed by X-ray fluorescence (XRF) and Fourier transform infrared (FTIR) spectrophotometry. Influence of the physiochemical parameters (contact time, initial concentration, adsorbent dosage, pH) on the effectiveness of the biomass in removing Pb (ll), Cd (ll), Ca (ll) and Mg (ll) ions was evaluated and the best fit adsorption isotherm model (Langmuir vs. Freundlich) was also determined.ResultsParticle size, dose, contact time and pH all played significant roles in the effectiveness of metal removal for both seed and seed pod biomass. At biomass particle size <90 microns, 98% removal rates of Pb (II) ions were achieved for powdered seed pods compared with 65% for powdered seeds. The same trend was observed for Cd, Ca and Mg. Contact time for effective removal of metal ions by pod powder and seed powder was 90 minutes and 120 minutes, respectively. Maximum adsorption was achieved at solution pH 6-8 for all metals. Lead adsorption followed a Langmuir isotherm model with maximum adsorption capacities of 10.8932 for pod powder and 3.4412 for seed powder. Adsorption of Ca and Mg followed a Freundlich model, with adsorption capacity of 1.1789 for Ca and 1.4521 for Mg.ConclusionsAcacia galpinii seeds and seed pods are inexpensive, readily available and may serve as a cost effective means for treatment of drinking water for domestic users in low and middle income countries.

Dataset Information

Goats' Feeding Supplementation with Acacia farnesiana Pods and Their Relationship with Milk Composition: Fatty Acids, Polyphenols, and Antioxidant Activity.

Publications

Goats' Feeding Supplementation with <i>Acacia farnesiana</i> Pods and Their Relationship with Milk Composition: Fatty Acids, Polyphenols, and Antioxidant Activity.

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