Determination of Nutritional Value and Oxidative Stability of Fresh Walnut
الموضوعات :
Najmeh Chatrabnous
1
,
Navid Yazdani
2
,
Kourosh Vahdati
3
1 - Department of Horticulture, College of Aburaihan, University of Tehran, Tehran, Iran
2 - Department of Horticulture, College of Aburaihan, University of Tehran, Tehran, Iran
3 - Department of Horticulture, College of Aburaihan, University of Tehran, Tehran, Iran
الکلمات المفتاحية: Juglans regia, Fatty Acids, Antioxidant, Peroxide value,
ملخص المقالة :
Walnut (Juglans regia L.) is a tree with significant economic value and usage for human health and various food industries. However, fresh walnut kernels are a less widespread product than the dried kernels. This study aimed to determine the fresh walnut kernel properties including, fatty acid composition, proximate composition, total phenolics (TPs), total antioxidant capacity (TAC), acidic, peroxide and saponification values of extracted oil and minerals of fresh walnuts kernels. Green walnut fruits were harvested on commercial maturity. The content of different fatty acids (%) was determined as 16:0; 5.91, 18:1; 77.7, 18.2; 11.13 and 18:3; 2.84. Also, the essential nutritional compounds such as protein content (16 ± 0.67), ash (3± 0.32), water (20 ± 0.49), fat (40 ± 0.22) and total carbohydrate (21 ± 0.23) were quantified and reported in percentages. The energy content was 508 ± 0.48 kcal. Acidic values, peroxide values and saponification values in walnut oil were 3 ± 0.14, 0.3 ± 0.06 and 130 ± 0.54 respectively. Furthermore, the average mineral contents were also determined. In general, it can be claimed that fresh walnuts have significant amounts of protein, oil and minerals, and higher water content in comparison with dry nuts. Nonetheless, our results in comparison with the information available about dry walnuts showed that fresh walnuts contained less oil content compared to dried fruits.
Abdallah IB, Tlili N, Martinez-Force E, Rubio AGP, Perez-Camino MC, Albouchi A, Boukhchina S (2015) Content of carotenoids, tocopherols, sterols, triterpenic and aliphatic alcohols, and volatile compounds in six walnuts (Juglans regia L.) varieties. Food Chemistry. 173, 972-978.
Anderson KJ, Teuber SS, Gobeille A, Cremin P, Waterhouse AL, Steinberg FM (2001) Walnut polyphenolics inhibit in vitro human plasma and LDL oxidation. The Journal of Nutrition. 131, 2837-2842.
AOAC (1990) Association of Official Analytical Chemists Methods, Washington, USA.
Arranz S, Perez-Jimenez J, Saura-Calixto F (2008) Antioxidant capacity of walnut (Juglans regia L.): Contribution of oil and defatted matter. European Food Research and Technology. 227, 425-431.
Atares L, Perez-Masia R, Chiralt A (2011) The role of some antioxidants in the hpmc film properties and lipid protection in coated toasted almonds. Journal of Food Engineering. 104, 649-656.
Ballisteri G, Arena E, Fallico B (2009) Influence of ripeness and drying process on the polyphenols and tocopherols of Pistacia vera L. Molecules. 14, 4358–4369.
Beyhan O, Kaya I, Sen S, Dogan M (1995) Fatty acid composition of walnut (Juglans regia L.) types selected in darende. Turkish Journal of Agriculture and Forestry. 19, 299-302.
Boye J, Aksay S, Roufik S, Ribéreau S, Mondor M, Farnworth E, Rajamohamed S (2010) Comparison of the functional properties of pea, chickpea and lentil protein concentrates processed using ultrafiltration and isoelectric precipitation techniques. Food Research International. 43, 537-546.
Breinholt V (1999) Desirable versus harmful levels of intake of flavonoids and phenolic acids. In: Kumpulainen j, Salonen JE (Eds.), Natural antioxidants and anticarcinogens in nutrition, health and disease. Cambridge: The Royal Society of Chemistry. pp. 93–105.
Caglarırmak N (2003) Biochemical and physical properties of some walnut genotypes (Juglans regia L.). Food / Nahrung, 47, 28-32.
Cannella C, Dernini S (2004) Walnut: Insights and nutritional value. V International Walnut Symposium. 705, 547-550.
Chen CYO, Blumberg JB (2008) In vitro activity of almond skin polyphenols for scavenging free radicals and inducing quinone reductase. Journal of Agricultural and Food Chemistry. 56, 4427-4434.
Christopoulos MV, Tsantili E (2012) Storage of fresh walnuts (Juglans regia L.) Low temperature and phenolic compounds. Postharvest Biology and Technology. 73, 80-88.
Christopoulos MV, Tsantili E, Papageorgiou V, Komaitis M, Rouskas D (2010) Effects of package atmosphere and temperature on phenolics, total antioxidant capacity and color in kernels of ‘Franquette’ walnuts during 8-month storage. Acta Horticulturae. 858, 75–81.
Duthie GG, Duthie SJ, Kyle JA (2000) Plant polyphenols in cancer and heart disease: implications as nutritional antioxidants. Nutrition Research Reviews. 13(1), 79-106.
Elin RJ (1993) Is the magnesium content of nuts a factor for coronary heart disease? Archives of Internal Medicine. 153, 779–780.
Gharibzahedi SMT, Mousavi SM, Hamedi M, Khodaiyan F (2014) Determination and characterization of kernel biochemical composition and functional compounds of persian walnut oil. Journal of Food Science and Technology. 51, 34-42.
Jiang L, Feng W, Li F, Xu J, Ma Y, Ma H (2015) Effect of one-methylcyclopropene (1-mcp) and chlorine dioxide (ClO2) on preservation of green walnut fruit and kernel traits. Journal of Food Science and Technology. 52, 267-275.
Kabas O, Yilmaz E, Ozmerzi A, Akinci I (2007) Some physical and nutritional properties of cowpea seed (Vigna sinensis L.). Journal of Food Engineering. 79, 1405-1409.
Lavedrine F, Ravel A, Villet A, Ducros V, Alary J (2000) Mineral composition of two walnut cultivars originating in france and california. Food Chemistry. 68, 347-351.
Macrae R, Robinson RK, Sadler MJ (1993) Encyclopaedia of food science, food technology and nutrition. Academic Press. pp. 5500.
Manzocco L, Calligaris S, Mastrocola D, Nicoli MC, Lerici CR (2001) Review of non-enzymatic browning and antioxidant capacity in processed foods. Trends in Food Science and Technology 11, 340–346.
Ozcan MM (2009) Some nutritional characteristics of fruit and oil of walnut (Juglans regia L.) growing in turkey. Iranian Journal of Chemistry and Chemical Engineering. 28, 57-62.
Pellegrini N, Serafini M, Salvatore S, Del Rio D, Bianchi M, Brighenti F (2006) Total antioxidant capacity of spices, dried fruits, nuts, pulses, cereals and sweets consumed in italy assessed by three different in vitro assays. Molecular nutrition & food research. 50, 1030-1038.
Pereira JA, Oliveira I, Sousa A, Ferreira IC, Bento A, Estevinho L (2008) Bioactivproperties and chemical composition of six walnut (Juglans regia L.) cultivars. Food and Chemical Toxicology. 46, 2103-2111.
Ros E (2009) Nuts and novel biomarkers of cardiovascular disease. American Journal of Clinical Nutrition. 89, 1649-1656.
Savage G, Dutta P, Mcneil D (1999a) Fatty acid and tocopherol contents and oxidative stability of walnut oils. Journal of the American Oil Chemists’ Society. 76, 1059-1063.
Savage G, Mcneil D, Osterberg K (1999b) Oxidative stability of walnuts during long term in shell storage. IV International Walnut Symposium. 544, 591-597.
Singleton VL, Orthofer R, Lamuela-Raventos RM (1999) Methods in Enzymology. 299, 152-178.
Sze‐Tao KWC, Sathe SK (2000) Walnuts (Juglans regia L): Proximate composition, protein solubility, protein amino acid composition and protein in vitro digestibility. Journal of the Science of Food and Agriculture. 80, 1393-1401.
Tapia MI, Sanchez-Morgado JR, Garcia-Parra J, Ramirez R, Hernandez T, Gonzalez-Gomez D (2013) Comparative study of the nutritional and bioactive compounds content of four walnut (Juglans regia L.) cultivars. Journal of Food Composition and Analysis. 31, 232-237.
Tsantili E, Konstantinidis K, Christopoulos MV, Roussos PA (2011) Total pheno-lics and flavonoids and total antioxidant capacity in pistachio (Pistachia vera L.) nuts in relation to cultivars and storage conditions. Scientia Horticulturae. 129, 694–701.
Tonbak S, Aktas M, Altay K, Azkur AK, Kalkan A, Bolat Y, Ozdarendeli A (2006) Crimean-Congo hemorrhagic fever virus: genetic analysis and tick survey in Turkey. Journal of Clinical Microbiology. 44(11), 4120-4124.
Wakeling LT, Mason RL, D’arcy BR, Caffin NA (2001) Composition of pecan cultivars Wichita and Western Schley [Carya illinoinensis (Wangenh) K. Koch] grown in Australia. Journal of Agricultural and Food Chemistry. 49, 1277–1281.
Wardlaw GM, Perspectives in Nutrition, 4th edn. McGraw-Hill, New York. pp. A-56±A-57 (1999)
Wardlaw GM (1999) Perspectives in Nutrition, 4th edn. McGraw-Hill, New York. pp. 56-57.
Wolf RB, Cavins JF, Kleiman R, Black LT (1982) Effect of temperature on soybean seed constituents: oil, protein, moisture, fatty acids, amino acids and sugars. Journal of the American Oil Chemists’ Society. 59(5), 230-232.
Zhang Z, Liao L, Moore J, Wu T, Wang Z (2009) Antioxidant phenolic compounds from walnut kernels (Juglans regia L.). Food Chemistry. 113, 160-165.
Zwarts GS, Dl Mcneil L (1999) Fatty acid content of new zealand-grown walnuts (Juglans regia L.). International Journal of Food Sciences and Nutrition. 50, 189-194.
