In traditional medicine, Carica papaya leaf has been used for a wide range of therapeutic applications including skin diseases and cancer. In this study, we investigated the in vitro cytotoxicity of aqueous and ethanolic extracts of Carica papaya leaves on the human oral squamous cell carcinoma SCC25 cell line in parallel with non-cancerous human keratinocyte HaCaT cells. Two out of four extrac...

Mature green 'Maradol' papaya fruits were exposed to ultraviolet (UV)-C irradiation (1.48 kJ·m(-2)) and stored at 5 or 14 °C. Changes in total phenols, total flavonoids, enzymatic activities of superoxide dismutase (SOD), catalase (CAT) and peroxidase (POD), as well as the scavenging activity against 2,2-diphenyl-1picrylhydrazyl (DPPH) and 3-ethylbenzothiazoline-6-sulfonic acid (ABTS) radicals ...

Carica papaya is widely used in folk medicine as herbal remedy to prevent, protect against, and cure several diseases. These curative properties are based on the presence in different parts of the plant of phytochemical nutrients with antioxidant effect. Seeds are the less exploited part; thus this study is aimed at assessing the antioxidant activities of the C. papaya seeds water extract again...

The growth kinetics and fermentation performance of Williopsis saturnus and Saccharomyces cerevisiae at ratios of 10:1, 1:1 and 1:10 (W.:S.) were studied in papaya juice with initial 7-day fermentation by W.saturnus, followed by S. cerevisiae. The growth kinetics of W. saturnus were similar at all ratios, but its maximum cell count decreased as the proportion of S. cerevisiae was increased. Con...

A study was conducted to evaluate the protective effect of aqueous seed extract of Carica papaya L. on gentamicin induced hepatotoxicity and nephrotoxicity in Wistar rats. A control group (Group I, n=12) was compared with rats administrated with 40 mg/kg gentamicin, once daily for 14 days (Groups II, III and IV, n=12 each). The effect of aqueous extract of Carica papaya L. at a dose level of 20...

Dioecy in flowering plants is evolved from a hermaphrodite ancestor. Transition from hermaphrodite to unisexual flowers has occurred multiple times across the different lineages of the angiosperms. Dioecy in plants is regulated on the physiological level by different phytohormones, on the epigenetic level by small RNAs and DNA methylation, and on the genetic level by sex determining genes. The ...

The efficacy of GF-120 NF Naturalyte Fruit Fly Bait in combination with field sanitation was assessed as a control for female oriental fruit fly, Bactrocera dorsalis (Hendel) (Diptera: Tephritidae), in papaya (Carica papaya L.) orchards in Hawaii. Three different bait spray regimes were evaluated: every row (high use of the bait), every fifth row (moderate use), and every 10th row (low use). Or...

Cysteine proteinases from the fruit and latex of plants, including papaya, pineapple and fig, were previously shown to have a rapid detrimental effect, in vitro, against the rodent gastrointestinal nematodes, Heligmosomoides polygyrus (which is found in the anterior small intestine) and Trichuris muris (which resides in the caecum). Proteinases in the crude latex of papaya also showed anthelmin...

Crude papaya latex (CPL) and its proteinases, papain (PPN) and chymopapain (CPN). are strong uterine eontractants. The current study was carried out to examine possible mechanisms of the uterine stimulating activity of the proteinases. Inaetivation of the enzymatic activity of papaya proteinases reversibly abolished their uterinestimulating effect, suggesting that enzymatic activity of the prot...

Banana (Musa sp.) and papaya (Carica papaya) cultivars were harvested from different locations throughout Hawaii and analyzed for vitamin C (ascorbic acid), provitamin A (b-carotene, a-carotene, b-cryptoxanthin), and mineral composition. Dwarf Brazilian (‘‘apple’’) bananas had almost three times more vitamin C (12.7mg/100 g fresh weight) than Williams fruit (4.5mg/100 g). Also, Dwarf Brazilian ...