This study assessed the effect of processing method on carotenoid profile oil from three varieties Nigerian palm fruits (Elaise guinensis). Specific Elaise guinensis, which are dura, pesifera and tenera were obtained National Institute for Oil Palm Research (NIFOR) in Edo state, Nigeria. The samples divided into two processed using different methods as commonly practiced south-eastern Nigeria, ...

objective: in this survey, we have checked the effects of natural (red bell pepper and tomato) and synthetic (astaxanthin and β-carotene) pigments on bloods factors of flower horn (cichlasoma sp.). methods: five treatments (three replicates/treatment) were employed. fishes were separated in fifteen equal groups and were fed for eight weeks with diets containing10 g kg–1 red bell pepper and toma...

in this study, the diffusivity and volumetric mass transfer coefficients for the extraction of β-carotene from crude palm oil using co2 solvent in supercritical fluid were determined in the pressure range of 7.5-17.5 mpa and temperature range of 80-120 ºc. for this purpose, a statistical method was applied in order to minimize the number of experiments required. the volumetric mass transfer coe...

background: antioxidants such as α-tocopherol (vitamin e) and β-carotene (vitamin a) play an important role in protective effect of repeated brief periods of ischemia, namely ischemic preconditioning (ipc). values of these antioxidants were investigated and compared after induction of ischemia reperfusion (ir) and kidney ipc in both male and female rats. methods: forty eight wistar rats were di...

Carotenoids are red, orange and yellow pigments, which are widely distributed in fruit and vegetables. The aim of this research is to investigate the effect of conventional, high pressure and microwave cooking on the concentrations of β-carotene in carrot and sweet corn. Raw carrots were washed, peeled and diced to a uniform size and then frozen at -70°C. Sweet corn was also provided in a simil...

Background: Vitamin E, β -carotene, and vitamin C are micronutrient antioxidants that protect cells from oxidative damage involved in prostate carcinogenesis. In separate trials, supplemental vitamin E was associated with a decreased risk of prostate cancer among smokers and supplemental β -carotene was associated with a decreased risk of prostate can cer among men with low baseline plasma β -c...

The extraction of lutein and β-carotene from spinach (Spinacia oleracea L.) leaves is important to the dietary supplement industry. A Box-Behnken design and response surface methodology (RSM) were used to investigate the effect of process variables on the ultrasound-assisted extraction (UAE) of lutein and β-carotene from spinach. Three independent variables, extraction temperature (°C), extract...

Dietary carotenoids like β-carotene are converted within the body either to retinoid, via β-carotene-15,15'-dioxygenase (BCO1), or to β-apo-carotenoids, via β-carotene-9',10'-oxygenase 2. Some β-apo-carotenoids are potent antagonists of retinoic acid receptor (RAR)-mediated transcriptional regulation, which is required to ensure normal heart development and functions. We established liquid chro...

Diet quality indices can predict nutritional adequacy of usual intake, but validity should be determined. The aim was to assess the validity of total and sub-scale score within the Australian Recommended Food Score (ARFS), in relation to fasting plasma carotenoid concentrations. Diet quality and fasting plasma carotenoid concentrations were assessed in 99 overweight and obese adults (49.5% fema...

Carrot, tomato and papaya represent important dietary sources of β-carotene and lycopene. The main objective of the present study was to compare the bioavailability of carotenoids from these food sources in healthy human subjects. A total of sixteen participants were recruited for a randomised cross-over study. Test meals containing raw carrots, tomatoes and papayas were adjusted to deliver an ...