Fatty acid profile of Trichosanthes kirilowii Maxim. seed oil

Abstract

Fatty acid profile data for refined cold-pressed Trichosanthes kirilowii Maxim. seed oil, in comparison to other commercially available oils — olive, rapeseed and camellia, are presented. Trichosanthes kirilowii Maxim. seed oil has high oleic and linoleic acid content and high polyunsaturated acid content. Squalene elutes as a distinct peak in the GC chromatograph. For a positive identification, MS detection was used. In the samples analyzed, squalene occurred in the range of 57.4–68.2 mg g−1.

Effects of Geographical Origin on the Conjugated Linolenic Acid of Trichosanthes kirilowii Maxim Seed Oil

“…The n-6/n-3 PUFA ratio has been recommended to be below 4 in human diets. In this study, the n-6/n-3 ratio was 1.01(Changxing), 1.00 (Quzhou), 0.92 (Yuexi), 0.87 (Dongzhi), respectively, which is inconsistent with the results of Wang et al [1] who reported a ratio of more than 4. The content of SFA was 5.02-6.70% of the total fatty acids, and significantly lower than the 12.1% reported by Wang et al [1].…”

“…The LA content in the present study was significantly lower than that determined by Wang et al [1] who found LA at 49.32% of the total seed oil. Oil from Quzhou seeds had the highest LA content (38.66%), while Changxing seeds had the lowest (33.09%).…”

“…Palmitic acid and stearic acid were the main saturated fatty acids (SFA) in T. kirilowii seed oils, and their contents were in the ranges of 2. Oleic acid was the most abundant monounsaturated fatty acid (MUFA) in the T. kirilowii seed oils, which is consistent with Wang et al [1]. The Quzhou oil sample was significantly lower than others in oleic acid, while 20:1 varied among samples.…”

“…PA obtained by Silver-Iron HPLC (39.7% of total fatty acids) and RP-HPLC (41.7% of total fatty acids) in the study of Joh et al [7] is higher than that we determined. However, Wang et al [1] did not report PA and a-ESA content of T. kirilowii seed oils, only a small amount of a-linolenic acid (18:3) (0.50%) was determined.…”

“…There are more than 80 species of Trichosanthes worldwide, and approximately 40 species are found in China, Trichosanthes kirilowii Maxim (T. kirilowii) is a genus of the Cucurbitaceae family. The fruit, seed, and root have been commonly used in traditional Chinese medicine, and it is considered as one of 50 fundamental herbs [1]. T. kirilowii exhibits a wide and varying array of chemical compounds, such as trichosanthin, a ribosome inactivating protein extracted from the root tube, such compounds may have immunomodulatory, anti-tumor, and anti-human immunodeficiency virus (HIV) properties [2,3].…”