Determination of Bioactive Ingredients in Five Pumpkin Seeds Cultivars

Abstract

Pumpkin is a widely cultivated vegetable used for human consumption and traditional medicine this investigation will provide much more information for the further exploration of pumpkin seeds. In the present study, the contents of total phenolics, phytosterols, squalene, α-tocopherol, polysaccharides and γ-aminobutyric acid (GABA) from the five types of pumpkin seeds cultivars were determined by established methods. The total phenolics contents of the pumpkin seeds ranged from 0.96 to 2.52 mg/g, total phytosterols contents ranged from 2.02 to 2.65 mg/g, while the levels of squalene and α-tocopherol detected ranged from 0.92 to 1.29 mg/g and 83.09 to 98.57µg/g, respectively. Polysaccharides were the most abundant constituents, ranging in concentration from 119.42 to 143.77 mg/g, GABA was also present in significant concentrations ranged from 3.71 to15.53 mg/g. Results indicated that bioactive ingredients from Baoku1 exhibited the relatively higher values in all the cultivars.

Nutritionally improved third generation snacks produced by supercritical CO2 extrusion I. Physical and sensory properties

“…Camelina cake is rich in polyphenols (approximately 666 ± 40 mg CA/100 g for crude extract and 866 ± 20 mg CA/100 g for purified extract), and has high DPPH scavenging activity (9.4 ± 0.5 μg/ml for crude extract and 22.8 ± 0.1 μg/ml for purified extract) (Terpinc, Polak, Makuc, Ulrih, & Abramovič, ). Pumpkin seeds are a rich source of vitamins, minerals, and bioactive compounds like phytosterols, phenolic substances, squalene, and γ‐aminobutanoic acid (Qi, Yang, Wang, Xu, & Qu, ). Defatted pumpkin cake has more phenolic acids than pumpkin seeds (Peričin, Krimer, Trivić, & Radulović, ).…”

Pumpkin (Cucurbita pepo) Seed

“…The squalene concentration was reported as 0.92 to 1.29 mg/g, whereas α-tocopherol was ranging from 83.09 to 98.57 μg/g. The results of the study also indicated the presence of a significant amount of γ-amino butyric acid (GABA) which was noted as 3.71-15.53 mg/100 g (Qi et al 2012). Phytosterol composition of pumpkin seeds is provided in Table 19.7.…”

The Relations between Minor Components and Antioxidant Capacity of Five Fruits and Vegetables Seed Oils in China

“…The contents of squalene in pumpkin seed oil in this study were higher than that previous report. Previous researchers have reported that the contents of squalene in pumpkin seed oil were in the range of 920 mg/kg to 1290 mg/kg 29 . This is probably related to the region and climate.…”