The ultrafast excited-state dynamics of the two carbonyl carotenoids 12′-apo-caroten-12′-al (12′C) and 8′-apo-caroten-8′-al (8′C) have been investigated in supercritical (sc) fluids by femtosecond transient absorption spectroscopy. CO2, N2O, and CF3H were employed as solvent media over the pressure range 85-300 bar and at the temperatures 308 and 323 K. The carotenoids were excited to the S2 st...

BACKGROUND In vitro evidence suggests anti-estrogenic properties for retinol and carotenoids, supporting a chemo-preventive role of these phytochemicals in estrogen-dependent cancers. During aging there are significant reductions in retinol and carotenoid concentrations, whereas estradiol levels decline during menopause and progressively increase from the age of 65. We aimed to investigate the ...

Quả dưa hấu giàu các hợp chất có hoạt tính sinh học như anthocyanin, lycopene, vitamin C, β-caroten và phenolic thành phần dinh dưỡng phù để sản xuất rượu vang chức năng. Mục đích của nghiên cứu này là xác định điều kiện thích gồm mật độ nuôi cấy tế bào ban đầu, nồng khô hoà tan pH đầu thời gian lên men cho quá trình nước quả bởi chủng Saccharomyces cerevisiae NM11. Bên cạnh ethanol, trong dịch...

Although a number of plant carotenoid cleavage dioxygenase (CCD) genes have been functionally characterized in different plant species, little is known about the biochemical role and enzymatic activities of members of the subclass 4 (CCD4). To gain insight into their biological function, CCD4 genes were isolated from apple (Malus x domestica, MdCCD4), chrysanthemum (Chrysanthemum x morifolium, ...

Photocurrent was observed upon monochromatic illumination of an ITO electrode coated with a TiO2 nanocrystalline mesoporous membrane with carotenoid 8′-apo-b-caroten-8′-oic acid (ACOA) deposited as a sensitizer (illuminated area 0.25 cm2) and immersed in an aqueous 10 mM hydroquinone (H2Q), 0.1 M NaH2PO4 solution (pH = 7.4) purged with argon, using a platinum flag counter electrode (area 3.3 cm...

Abstrak Penelitian bertujuan untuk mengetahui pengaruh substitusi tepung daun indigofera (Indigofera zollingeriana) terhadap performan produksi dan kualitas telur ayam ras. Materi penelitian ras petelur strain Hy-line Brown, umur 16 minggu rata-rata bobot badan awal 1,35 kg sebanyak 45 ekor. dilaksanakan selama delapan sampai 23 minggu. Perlakuan yang diberikan adalah : T0 = pakan basal (100%),...

Increased oxidative stress is known to accelerate age-related pathologies. Beta-cryptoxanthin (β-CRX, (3R)-β,β-caroten-3-ol) is a potent antioxidant that is highly rich in Satsuma mandarin orange (mandarin), which is the most popular fruit in Japan. We investigated the antioxidative and anti-aging effects of β-CRX and mandarin using senescence-accelerated mice (SAMP10), which were characterized...