Evaluation of the proximate composition, antioxidant potential, and antimicrobial activity of mango seed kernel extracts

Abstract

After pulp extraction in fruit processing industry, a significant quantity of mango seed kernels are discarded as solid wastes. These seed kernels can be ideal raw materials for obtaining extracts rich in bioactive compounds with good antioxidant properties. The conversion of these wastes into utilizable food ingredients would help in reducing environmental problems associated with processing waste disposal. In order to determine their potential use, this study evaluated some of the biochemical characteristics and antimicrobial potential of mango seed kernel extracts on medically important human bacterial and fungal pathogens. Four mango varieties (Apple, Ngowe, Kent and Sabine) from Makueni and Embu counties in Kenya were used for this study. The analyzed mango seed kernel powders were found to contain on average, 6.74–9.20% protein content. Apple and Ngowe mango seed kernels had significantly higher fat content of 13.04 and 13.08, respectively, while Sabine from Makueni had the least fat content of 9.84%. The ash, fiber, and carbohydrate contents ranged from 1.78 to 2.87%, 2.64 to 3.71% and 72.86 to 75.92%, respectively. The mean percentage scavenging ability of mango kernel extracts at the concentration of 20 mg/mL was 92.22%. Apple and Sabine mango kernel extracts had significantly high inhibition zones of 1.93 and 1.73 compared to Kent and Ngowe with 1.13 and 1.10, respectively, against E. coli. For C. albicans, the inhibition of Kent mango kernel extract, 1.63, was significantly lower than that of Ngowe, Apple, and Sabine with 2.23, 2.13, and 1.83, respectively. This study demonstrates that mango seed powder is an abundant and cost‐effective potential natural antibiotic and antifungal that can be utilized in addressing the challenge of food poisoning and infections caused by pathogenic microorganisms in the food industry.

Effect of Dietary Mango Seed Kernel (Mangifera Indica) as Partial Replacement of Corn on Productive and Physiological Performance of Growing Gimmizah Cockerels

“…This is may be due to that MSK could be used as antimicrobial compounds due to its high quality of fat and protein as well as high levels of natural antioxidants. Similar results were obtained when counting Psychrophilic and Coliform bacteria in fresh breast and thigh meat ( et al, 1986) and antibiotics against pathogenic microorganism (Mutua et al, 2017). Table 9 showed the economic efficiency of using mango seed kernel (MSK) as a partial replacement of corn for growing Gimmizah cockerels.…”

“…Additionally, the highest IgG and IgM values were recorded for cockerels fed diet containing the lowest MSK level (10%). The improvement in immunological status in the current results may be attributed to the MSK contains various phenolic compounds which considered as antimicrobial, antifungal, antiviral (Cojocaru et al, 1986) and antibiotics against pathogenic microorganism (Mutua et al, 2017). Results of Table 6 indicated that there was a significant decrease (p≤0.05) in plasma cholesterol by increasing MSK levels as a replacement of corn compared with the control group.…”

Mango Seed Kernel Fat as a Cocoa Butter Substitute Suitable for the Tropics

“…Mutua et al. () reported that the percentage scavenging ability of mango kernel extracts at a concentration of 20 mg/mL from various mango cultivars was 92.2%.…”

“…The oxidative stability and antioxidant potential of MSKF may be partly attributed to the presence of tocopherols naturally present in mango seed fat (Jahurul et al, 2017;Kittiphoom, 2012). Mutua et al (2017) reported that the percentage scavenging ability of mango kernel extracts at a concentration of 20 mg/mL from various mango cultivars was 92.2%.…”

Caracterización química y actividad antibacteriana del aceite esencial de Mangifera indica L. de tres regiones de Venezuela

“…Dado lo anterior, en este estudio se analizó la composición química y la actividad antibacteriana del aceite esencial obtenido de las hojas de la especie M. indica L., las cuales fueron recolectadas en tres regiones de la República Bolivariana de Venezuela. La investigación se basó en la descripción de la actividad antibacteriana en los extractos obtenidos de diferentes partes de la planta de M. indica L. [9][10][11][12][13][14], con el objetivo de contribuir con la caracterización de esta especie. Este es el primer estudio comparativo acerca de la actividad antibacteriana del aceite esencial procedente de las hojas de M. indica L. de tres regiones de Venezuela.…”