The aim of this study was to investigate the effect addition fungal solid-state fer-mented product (FP) enriched with gamma-linolenic acid (GLA) and β-carotene feed on haematological immunological parameters broiler chickens. Eighty 1-day-old COBB 500 chickens were divided into two groups. control group fed basic diets experimental received 10% FP, while amount diet reduced. FP produced during ...

Production of carotenoids and lipids by Rhodotorula toruloides CBS 14 cultivated on wheat straw hydrolysate was investigated. An ultra-high-performance liquid chromatography (UHPLC) method for carotenoid quantification developed validated. Saponification effects individual were identified, lipid kinetics during cultivation determined. The β-carotene, γ-carotene, torularhodin, torulene identifie...

This study was performed to investigate the effect of beta carotene-vitamin E and hCG treatments alone or a combination both on fertility in estrus syncronized Awassi ewe lambs. A total 103 lambs were divided into four groups before study. Lambs treated with progesterone sponge for 12 days, PGF2α two days removal, 600 IU PMSG removal day 150 mating. The control group (n: 25) did not receive any...

The halotolerant microalga Dunaliella salina has been widely studied for natural β-carotene production. This work shows biochemical characterization of three newly isolated Dunaliellasalina strains, DF15, DF17, and DF40, compared with D. salina CCAP 19/30 and D. salina UTEX 2538 (also known as D. bardawil). Although all three new strains have been genetically characterized as Dunaliella salina ...

We have examined the concentration of β-carotene in the fat of isolated abdominal subcutaneous adipocytes obtained from lean (BMI<23 kg/m²), non-obese with higher BMI (23≤BMI<28 kg/m²), obese (BMI≥28 kg/m²), and from a group of obese subjects with type 2 diabetes. The concentration of β-carotene was 50% lower in the adipocytes from the obese and obese/diabetic groups compared with the lean and ...

Empirical prediction models that weight food frequency questionnaire (FFQ) food items by their relation to nutrient biomarker concentrations may estimate nutrient exposure better than nutrient intakes derived from food composition databases. Carotenoids may especially benefit because contributing foods vary in bioavailability and assessment validity. Our objective was to develop empirical predi...

β-carotene is the most abundant provitamin A carotenoid in human diet and tissues. It exerts a number of beneficial functions in mammals, including humans, owing to its ability to generate vitamin A as well as to emerging crucial signaling functions of its metabolites. Even though β-carotene is generally considered a safer form of vitamin A due to its highly regulated intestinal absorption, det...

Vitamin and mineral deficiencies are prevalent in human populations throughout the world. Vitamin A deficiency affects hundreds of millions of pre-school age children in low income countries. Fruits of pepper (Capsicum annuum L.) can be a major dietary source of precursors to Vitamin A biosynthesis, such as β-carotene. Recently, pepper breeding programs have introduced the orange-fruited (of) t...

DEDICATION I would like to dedicate this work to my lovely and supportive parents. I am very appreciative of their love and support. Without their guidance, I would not be able to achieve this. iv ACKNOWLEDGMENTS I would like to acknowledge all of those associated with the Food Science Department at the University of Massachusetts Amherst. I would like to give my special thanks to Dr. Xiao and ...