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Fatty acid profiles, tocopherol contents, and antioxidant activities of heartnut (Juglans ailanthifolia Var. cordiformis) and Persian walnut (Juglans regia L.).
J Agric Food Chem. 2007 Feb 21; 55(4):1164-9.JA

Abstract

The fatty acid and tocopherol compositions of three heartnut (Juglans ailanthifolia var. cordiformis) varieties (Imshu, Campbell CW1, and Campbell CW3) were examined and compared with those of two Persian walnut (Juglans regia L.) varieties (Combe and Lake). The major fatty acids found in heartnuts and walnuts were identified by gas chromatography as linoleic (18:2n-6), alpha-linolenic (18:3n-3), oleic (18:1n-9), palmitic (16:0), and stearic acid (18:0). Polyunsaturated fatty acids were the main group of fatty acids found in both heartnut and walnut, ranging from 73.07 to 80.98%, and were significantly higher in heartnut than in Persian walnuts (P < 0.001). In addition, heartnuts had significantly higher levels of 18:2n-6 and lower levels of 18:3n-3 compared to the Persian walnuts. gamma-Tocopherol was the main tocopherol homologue present in both types of nuts, followed by delta- and alpha-tocopherol. The highest concentration of gamma-tocopherol was found in Combe Persian walnut at 267.87 mug/g, followed by Lake Persian walnut and Imshu, Campbell CW1, and CW3 heartnut at 205.45, 187.33, 161.84, and 126.46 mug/g, respectively. Tocopherols, particularly the gamma-tocopherol, were found to contribute the most to the strong total antioxidant activities of both walnut and heartnut oils using either the free radical 2,2-diphenyl-1-picrylhydrazyl assay or the photochemiluminescence method.

Authors+Show Affiliations

Food Research Program, Agriculture and Agri-Food Canada, 93 Stone Road West, Guelph, Ontario N1G 5C9, Canada.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

17253708

Citation

Li, Li, et al. "Fatty Acid Profiles, Tocopherol Contents, and Antioxidant Activities of Heartnut (Juglans Ailanthifolia Var. Cordiformis) and Persian Walnut (Juglans Regia L.)." Journal of Agricultural and Food Chemistry, vol. 55, no. 4, 2007, pp. 1164-9.
Li L, Tsao R, Yang R, et al. Fatty acid profiles, tocopherol contents, and antioxidant activities of heartnut (Juglans ailanthifolia Var. cordiformis) and Persian walnut (Juglans regia L.). J Agric Food Chem. 2007;55(4):1164-9.
Li, L., Tsao, R., Yang, R., Kramer, J. K., & Hernandez, M. (2007). Fatty acid profiles, tocopherol contents, and antioxidant activities of heartnut (Juglans ailanthifolia Var. cordiformis) and Persian walnut (Juglans regia L.). Journal of Agricultural and Food Chemistry, 55(4), 1164-9.
Li L, et al. Fatty Acid Profiles, Tocopherol Contents, and Antioxidant Activities of Heartnut (Juglans Ailanthifolia Var. Cordiformis) and Persian Walnut (Juglans Regia L.). J Agric Food Chem. 2007 Feb 21;55(4):1164-9. PubMed PMID: 17253708.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Fatty acid profiles, tocopherol contents, and antioxidant activities of heartnut (Juglans ailanthifolia Var. cordiformis) and Persian walnut (Juglans regia L.). AU - Li,Li, AU - Tsao,Rong, AU - Yang,Raymond, AU - Kramer,John K G, AU - Hernandez,Marta, Y1 - 2007/01/25/ PY - 2007/1/27/pubmed PY - 2007/6/7/medline PY - 2007/1/27/entrez SP - 1164 EP - 9 JF - Journal of agricultural and food chemistry JO - J. Agric. Food Chem. VL - 55 IS - 4 N2 - The fatty acid and tocopherol compositions of three heartnut (Juglans ailanthifolia var. cordiformis) varieties (Imshu, Campbell CW1, and Campbell CW3) were examined and compared with those of two Persian walnut (Juglans regia L.) varieties (Combe and Lake). The major fatty acids found in heartnuts and walnuts were identified by gas chromatography as linoleic (18:2n-6), alpha-linolenic (18:3n-3), oleic (18:1n-9), palmitic (16:0), and stearic acid (18:0). Polyunsaturated fatty acids were the main group of fatty acids found in both heartnut and walnut, ranging from 73.07 to 80.98%, and were significantly higher in heartnut than in Persian walnuts (P < 0.001). In addition, heartnuts had significantly higher levels of 18:2n-6 and lower levels of 18:3n-3 compared to the Persian walnuts. gamma-Tocopherol was the main tocopherol homologue present in both types of nuts, followed by delta- and alpha-tocopherol. The highest concentration of gamma-tocopherol was found in Combe Persian walnut at 267.87 mug/g, followed by Lake Persian walnut and Imshu, Campbell CW1, and CW3 heartnut at 205.45, 187.33, 161.84, and 126.46 mug/g, respectively. Tocopherols, particularly the gamma-tocopherol, were found to contribute the most to the strong total antioxidant activities of both walnut and heartnut oils using either the free radical 2,2-diphenyl-1-picrylhydrazyl assay or the photochemiluminescence method. SN - 0021-8561 UR - https://www.unboundmedicine.com/medline/citation/17253708/Fatty_acid_profiles_tocopherol_contents_and_antioxidant_activities_of_heartnut__Juglans_ailanthifolia_Var__cordiformis__and_Persian_walnut__Juglans_regia_L___ L2 - https://dx.doi.org/10.1021/jf062322d DB - PRIME DP - Unbound Medicine ER -