Influence of roasting conditions on physicochemical and fatty acid profile of raw and roasted cashew kernel (Anacardium occidentale) grown in Nigeria

This study aimed at evaluating the effect of roasting conditions on some physicochemical and nutritional properties of cashew nut lipid fractions at different temperature (100–160ᵒC) and time (20–60 min). Raw and roasted cashew nuts were also analyzed for their composition in fatty acid by GC-FID. P...

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Matična publikacija: Hrvatski časopis za prehrambenu tehnologiju, biotehnologiju i nutricionizam (Online)
15 (2020), 1/2 ; str. 17-26
Glavni autori: Olatidoye, Olawale Paul (Author), Shittu, Taofik Akinyemi, Awonorin, Samuel Olusegun, Ajisegiri, Emmanuel Sunday
Vrsta građe: e-članak
Jezik: eng
Predmet:
Online pristup: https://doi.org/10.31895/hcptbn.15.1-2.7
Hrčak
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024 7 |2 doi  |a 10.31895/hcptbn.15.1-2.7 
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100 1 |a Olatidoye, Olawale Paul  |4 aut  |9 HR-ZaNSK 
245 1 0 |a Influence of roasting conditions on physicochemical and fatty acid profile of raw and roasted cashew kernel (Anacardium occidentale) grown in Nigeria  |h [Elektronička građa] /  |c Olawale Paul Olatidoye, Taofik Akinyemi Shittu, Samuel Olusegun Awonorin, Emmanuel Sunday Ajisegiri. 
300 |b Graf. prikazi. 
504 |a Bibliografija: str. 25-26. 
504 |a Summary. 
520 |a This study aimed at evaluating the effect of roasting conditions on some physicochemical and nutritional properties of cashew nut lipid fractions at different temperature (100–160ᵒC) and time (20–60 min). Raw and roasted cashew nuts were also analyzed for their composition in fatty acid by GC-FID. Physicochemical properties of the oil showed that the oil yield of roasted cashew nut oil (56.67-31.67%) was significantly higher compared to unroasted oil (47.43%). Also, cashew nut oil with mean values revealed that acid (12-0.86 mg KOH/g of oil); saponification value (138.10-169.06 mgKOH/g of oil), iodine value (55.50-36.19 mg of I/100g of oil); TBA(0.012-0.18mg); p-anisidine value (0.55-0.66); peroxide value (7.26-3.05 meq/kg) and free fatty acid (1.07-1.50 % oleic acid) which indicated that cashew nut oil is edible, non-drying and may not be suitable for soap making. Results of GC-FID analysis of the ethyl esters of saturated and unsaturated fatty acid of raw and roasted cashew nut showed that unsaturated fatty acids represented 60.57% for unroasted samples with roasted samples (79.67–83.67%) while saturated fatty acids recorded (16.11–37.65%). The fatty acid composition of the oils shows the presence of four main fatty acids: palmitic (9.25–29.50%); stearic (4.4–9.34%); oleic (34.75–65.60%); and linoleic (1.35–20.66%) with high oleic to linoleic ratio associated with high oil stability. The order of increase is oleic >linoleic >palmitic >stearic in all the samples irrespective of roasting conditions. The result showed that minor changes occur in the fatty acids composition as the roasting temperature and time increased. It was concluded that the heat treatment used does not significantly affect the fatty acid profile content of cashew nuts preserving its antioxidant activity along with other bioactive compounds contained therein. 
653 0 |a Indijski oraščić  |a Pečenje  |a Masne kiseline  |a Fizikalno-kemijska svojstva  |a Oleinska kiselina  |a Linolna kiselina 
653 5 |a Nigerija 
700 1 |a Shittu, Taofik Akinyemi  |4 aut  |9 HR-ZaNSK 
700 1 |a Awonorin, Samuel Olusegun  |4 aut 
700 1 |a Ajisegiri, Emmanuel Sunday  |4 aut  |9 HR-ZaNSK 
773 0 |t Hrvatski časopis za prehrambenu tehnologiju, biotehnologiju i nutricionizam (Online)  |x 1847-7461  |g 15 (2020), 1/2 ; str. 17-26  |w nsk.(HR-ZaNSK)000740670 
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998 |b dalo2202 
856 4 0 |u https://doi.org/10.31895/hcptbn.15.1-2.7 
856 4 0 |u https://hrcak.srce.hr/245696  |y Hrčak 
856 4 1 |y Digitalna.nsk.hr