Research progress on Walnut oil : Bioactive compounds, health benefits, extraction methods, and medicinal uses

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Walnut oil is extracted from walnut kernels (Juglans regia Linne) or iron walnut kernels (Juhlans sigillata Dode). The percentage of oil in walnuts is 52%-70%. The main constituents in oil are fatty acids, phenols, sterols, squalene, melatonin, vitamins, and minerals. Many extraction methods such as supercritical carbon dioxide extraction, maceration, modified "bligh and dyer extraction," aqueous enzymatic extraction, ultrasonic extraction, soxhlet extraction, and cold-press extraction methods are reported in the literature. Walnut oil showed anti-inflammatory, antitumor, antioxidant, immunomodulatory, neuroprotective, cardioprotective, antidiabetic, and antihyperlipidemic activities. The reported data in the literature suggest that walnut oil has many health benefits. This review summarizes the extraction methods, bioactive constituents, health benefits, and pharmacological actions of walnut oil. PRACTICAL APPLICATIONS: Walnut oil is a natural vegetable oil of significant importance due to their nutritional, and intelligence-boosting benefits. Several factors, including the processing parameters and the phytochemical profile, affect walnut oil products' flavor and color. In addition, storage environment of walnut oil can also affect walnut oil quality. Apart from the predominant ingredient fatty acids, the chemical composition of walnut oil comprises phenols, sterols, squalene, melatonin, vitamins, and minerals. These bioactive compounds are of potential value owing to their health-promoting benefits, including antioxidant, antitumor, and cholesterol-lowering effects. Many chemical constituents were isolated from walnut oil; however, all the compounds are not explored for their possible medicinal value. Thus, clinical studies, exploration of the therapeutic potential and the molecular mechanisms of all the compounds, and development of convenient dosage forms either for therapeutic or functional food purposes are warranted.

Medienart:

E-Artikel

Erscheinungsjahr:

2022

Erschienen:

2022

Enthalten in:

Zur Gesamtaufnahme - volume:46

Enthalten in:

Journal of food biochemistry - 46(2022), 12 vom: 01. Dez., Seite e14504

Sprache:

Englisch

Beteiligte Personen:

Song, Huaying [VerfasserIn]
Cong, Zhufeng [VerfasserIn]
Wang, Changlin [VerfasserIn]
He, Mengyuan [VerfasserIn]
Liu, Congying [VerfasserIn]
Gao, Peng [VerfasserIn]

Links:

Volltext

Themen:

11103-57-4
12001-79-5
7QWM220FJH
Antioxidants
Chemistry
Extraction
Fatty Acids
Health benefits
JL5DK93RCL
Journal Article
Medicinal value
Melatonin
Minerals
Phenols
Research Support, Non-U.S. Gov't
Review
Squalene
Sterols
Vitamin A
Vitamin K
Vitamins
Walnut oil

Anmerkungen:

Date Completed 05.01.2023

Date Revised 13.01.2023

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1111/jfbc.14504

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM34883523X