The DOI matches its Crossref record; 12 of the 12 references it cites were found in a registry or an index.
Phenolic Acids, Syringaldehyde, and Juglone in Fruits of Different Cultivars of Juglans regia L.
Abstract
Phenolic acids (chlorogenic, caffeic, p-coumaric, ferulic, sinapic, ellagic, and syringic acid) as well as syringaldehyde and juglone were identified in ripe fruits of 10 walnut cultivars: Adams, Cisco, Chandler, Franquette, Lara, Fernor, Fernette, Alsoszentivani 117 (A-117), Rasna, and Elit. Analyses were done using a high-performance liquid chromatograph equipped with a diode array detector. Significant differences in the contents of identified phenolics were observed among cultivars. Phenolics were determined separately in the kernel and in the thin skin of the walnut, termed the pellicle. Not only in the kernel but also in the pellicle did syringic acid, juglone, and ellagic acid predominate (average values of 33.83, 11.75, and 5.90 mg/100 g of kernel; and 1003.24, 317.90, and 128.98 mg/100 g of pellicle, respectively), and the contents of ferulic and sinapic acid (average values of 0.06 and 0.05 mg/100 g of kernel and 2.93 and 2.17 mg/100 g of pellicle, respectively) were the lowest in all cultivars. The highest differences in the sum of all identified phenolics were observed between Rasna and Fernette fruits; in Rasna there were >2-fold higher contents of identified phenolics in both kernel and pellicle. It was found that the walnut pellicle is the most important source of walnut phenolics. The ratio between the contents in pellicle and kernel varied by at least 14.8-fold for caffeic acid (cv. Adams) and by up to 752.0-fold for p-coumaric acid (cv. Elit).
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Cites
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Walnut Polyphenolics Inhibit In Vitro Human Plasma and LDL Oxidation
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Phenolic profile in the quality control of walnut (Juglans regia L.) leaves
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Cited by
Shahidi, F., & Ambigaipalan, P. (2015) · Journal of Functional Foods · doi:10.1016/j.jff.2015.06.018 · Cited by 3,081
Bioactive properties and chemical composition of six walnut (Juglans regia L.) cultivars
Pereira, J. A., Oliveira, I., Sousa, A., Ferreira, I. C. F. R., Bento, A., & Estevinho, L. (2008) · Food and Chemical Toxicology · doi:10.1016/j.fct.2008.02.002 · Cited by 375
Walnut (Juglans regia L.): genetic resources, chemistry, by‐products
Martínez, M. L., Labuckas, D. O., Lamarque, A. L., & Maestri, D. M. (2010) · Journal of the Science of Food and Agriculture · doi:10.1002/jsfa.4059 · Cited by 364
Metadata
- Authors
- Colaric, M., Veberic, R., Solar, A., Hudina, M., & Stampar, F.
- Venue
- Journal of Agricultural and Food Chemistry
- Publisher
- American Chemical Society (ACS)
- Published
- 2005-07-13
- Volume
- 53
- Issue
- 16
- Pages
- 6390-6396
- ISSN
- 0021-8561 (ISSN-L)
- 1520-5118
- OpenAlex
- W1970946630
- Cited by
- 268
- References
- 12
- FWCI
- 2.97
- Type
- journal article
- Language
- en
- Open access
- closed
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