Quality analysis of walnut oil extracted by cold press and solvent methods for in vitro phytochemicals, antioxidant activity and GCMS analysis

Measurement: Food Pub Date : 2025-05-09 DOI:10.1016/j.meafoo.2025.100223

Lubna Masoodi , Adil Gani , Debabrata Sircar , Kulsum Jan

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Abstract

Walnut oil was obtained by using two different extraction methods (cold press and solvent extraction). The cold pressing process yield (48.0 ± 0.1 %) was clearly lower than the solvent extraction (66.0 ± 0.3 %). There were no significant differences in oil density between the two extractions methods used in this study. The oil extracted using the CP method had the highest viscosity (81.08 ± 0.0310⁻³xPas), acid value (0.35 ± 0.03 %), and peroxide value (0.83 ± 0.04 meq x kg) than SE walnut oil. A total number of 60 compounds were found in cold pressed walnut oil. However, only 43 compounds were found in solvent extracted oil. The prominent bioactive compounds detected in cold press walnut oil were pentadecanoic acid, 9,12-octadecadieno, 9-hexadecenoic acid, gamma-sitosterol, delta-tocopherol, heneicosanoic acid, gamma-tocopherol, nonanoic acid, camphor while in case of solvent extracted walnut oil, the prominent compounds found were palmitic acid, linolenic acid, oleic acid, alpha-linolenic acid, eicosanoic acid, 9,12-octadecadieno, 2-linoleoylglycerol, monolinolein. Considering the aforementioned factors, cold press walnut oil has potential uses in food, cosmetics, and healthcare.

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冷压榨法和溶剂法提取核桃油的质量分析，体外植物化学成分、抗氧化活性和GCMS分析

采用冷压榨和溶剂萃取两种不同的提取方法得到核桃油。冷压法得率（48.0±0.1%）明显低于溶剂萃取法得率（66.0±0.3%）。本研究中使用的两种提取方法在油密度上没有显著差异。CP法提取的核桃油粘度（81.08±0.0310−3xPas）、酸值（0.35±0.03%）和过氧化值（0.83±0.04 meq × kg）均高于SE法提取的核桃油。在冷榨核桃油中共发现60种化合物。然而，在溶剂萃取油中仅发现43种化合物。冷榨核桃油中检测到的主要生物活性物质为五酸、9,12-十八烯二烯、9-十六烯酸、-谷甾醇、-生育酚、二烯二酸、-生育酚、壬酸、樟脑；溶剂提取核桃油中检测到的主要生物活性物质为棕榈酸、亚麻酸、油酸、α -亚麻酸、二十烷酸、9,12-十八烯二烯、2-亚油基甘油、单油酸。考虑到上述因素，冷榨核桃油在食品、化妆品和保健方面具有潜在的用途。

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来源期刊

Measurement: Food

CiteScore

3.10

自引率

0.00%

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