The characterization of Argan oils to classify them in three categories (‘Extra Virgin’, ‘Virgin’ and ‘Lower quality’) was evaluated. A total 120 Moroccan samples from the Taroudant forest investigated. free acidity, peroxide value, spectrophotometric indices (K232 K270), fatty acids, sterols, tocopherol contents were assessed. also scanned by FTIR spectroscopy. Principal Component Analysis (PC...

OBJECTIVE To study the effect of gestational diabetes mellitus (GDM) on indices of oxidative stress and lipid profiles in maternal and cord blood samples. METHODS Blood samples were collected from 40 normal pregnant women and 46 women with GDM during the period 1998 through to 1999 at the Armed Forces Hospital, Riyadh, Kingdom of Saudi Arabia. The GDM patients were subdivided into 2 groups: p...

  Background: The dried fruits of Silybum marianum (L.) Gaertn (Compositae) contain silymarin, an isomeric mixture of flavonolignans. Silymarin acts as a strong anti -hepatotoxic. This fruits contains a high amount of oil .  Objective: The objective of this study was to determine total lipid content, fatty acid composition and content of different kind of tocopherols in seed oils of S. marianum...

BACKGROUND AND OBJECTIVE In Type 1 diabetes mellitus (DM), hyperglycemia is considered a primary cause of diabetic vascular complications and is associated with oxidative stress. The role of antioxidants, particularly alpha tocopherol, in Type 1 DM and its contribution in the development of vascular complications is not clear. Therefore, the present study aims to investigate the relationship be...

Sesame (Sesamum indicum L.) seed and oil have long been used widely as healthy foods to supply energy and prevent aging. Some of the main active anti-oxidative constituents in sesame seeds are γ-tocopherol and phenols. The purpose of this study was to investigate the relationship between roasting temperature and time with γ-tocopherol and total phenolic compounds (TPC) of sesame seeds when roas...

abstract: in this study the non-saponifiable matter of oils extracted from nine varieties of sunflower seed were subjected a series of chemical tests. the non-saponifiable matters were fractionated into a number of chemical classes of compounds namely sterols, 4 methyl sterols, triterpene alcohols, tocopherols and hydrocarbons. the two major and important classes of compounds consisting of ster...

Gamma tocopherol content of 7 Iranian sesame seeds (sesamum indicum L.) was determined by high performance liquid chromatography using C8 column and methanol, water and butanol as mobile phase. The gamma-tocopherol content varied from 563 to 1095 mg/kg in oil and 293 to 569 mg/kg in sesame seed and was in broad agreement with the Codex range. A large variation was found in the concentration of ...

Sunflower oil, with more than 0.9 of tocopherols in the alpha-tocopherol form, supplies more vitamin E than any other vegetable oil. Thus far, no breeding to increase vitamin E levels in sunflower seeds has been conducted. The objective of the present research was to develop sunflower lines with high and low total seed tocopherol content through evaluation and subsequent selection of a large ge...

This study was to assess the nutritional quality and bioactive properties of black cumin (Nigella sativa L.) seeds oil commonly found in Chinese market. The results showed that contain 5.02, 21.07, 39.02, 3.02, 6.01, 25.86% moisture, crude proteins, fat, ash, fiber, carbohydrates, respectively. It also contains substantial amounts minerals, namely calcium, potassium, phosphorus, magnesium, sodi...

Background. The Free Radical Theory of Aging mechanistically links oxidative stress to aging. Okinawa has among the world's longest-lived populations but oxidative stress in this population has not been well characterized. Methods. We compared plasma lipid peroxide (LPO) and vitamin E-plasma and intracellular tocopherol levels (total α, β, and γ), in centenarians with younger controls. Results....