Search Results

You are looking at 1 - 10 of 704 items for :

Clear All

tocopherols, known as vitamin E, have been shown to carry out essential functions in slowing or preventing degenerative disease processes in humans ( Kaur and Kapoor, 2001 ; Traber and Sies, 1996 ). Of the four known tocopherol forms—α, β, γ, and δ

Free access

Vitamin E is a group of eight lipid-soluble antioxidants (α-, β-, γ-, and δ- tocopherols and tocotrienols, collectively known as tocochromanols) that are synthesized in the plastids of plants, algae, and some cyanobacteria ( Mène-Saffrané and

Free access

Kernels in the shell were compared to bare kernels with pellicles, half nuts, blanched nuts, finely chopped nuts, and roasted nuts. Whole nuts and whole kernels were stable for up to two years of storage provided they had not been exposed to high temperatures. Nuts stored at low temperatures (0 and 5°C) did not lose significant amounts of vitamin E. Increasing surface area by dividing nuts or finely chopping them, increased the loss of vitamin E. Samples that had lower surface areas did not lose much vitamin E and peroxide value was low. Higher roasting temperatures caused losses in vitamin E and increased peroxide values at the beginning and during storage, even when stored at 0°C. Intact nuts and low storage temperatures did not show changes in fatty acid composition. High temperature treatments changed fatty acid composition, mainly decreasing linoleic initially and finally oleic acids.

Free access

provitamin A (β-carotene), vitamin C (ascorbic acid), vitamin K 1 (phylloquinone), vitamin E (α- and γ-tocopherol), and other minerals including Fe, Ca, and K ( Mou 2008 ; Murray et al. 2021 ). Even though several vitamins and minerals in lettuce are not as

Open Access

phenolic content is found to be correlated with reduced incidences of heart diseases in epidemiological studies ( Criqui and Ringel, 1994 ; Renaud and de Lorgeril, 1992 ). The anticarcinogenic and antioxidant properties of vitamins A, C, E, β-carotene, and

Free access

added vitamins; and medium E, 1× MS with vitamins plus added mesos and vitamins. The second shoot multiplication study evaluated the addition of 0, 500, 1000, or 1500 mg·L −1 ammonium nitrate (NH 4 NO 3 ) to medium E. For both studies, the experimental

Open Access

., 2006 ). A number of phytochemicals that are present in peppers such as phenolics, vitamin C, vitamin E, and carotenoids may contribute to antioxidant activity and consequently show various pharmacological and nutritional activities ( Balasundram et al

Free access

to high temperature buildup in the greenhouse, which might have inhibited the lycopene biosynthesis. A significant G×E interaction was also found for lycopene and ascorbic acid content (vitamin C) when a diverse set of 14 varieties was evaluated in

Free access

of increasing importance given proposed climate change scenarios ( Ray, 2015 ). Adverse climate conditions (e.g., low rainfall, high evaporation) and inappropriate agronomic management (e.g., poor water management and indiscriminate use of chemical

Open Access

compounds that are known to confer a health benefit (carotenoids, β-sitosterol, and vitamin E). Avocados are a significant source of dietary phytosterols, in particular β-sitosterol, that has been shown to decrease cholesterol absorption in the intestine

Free access