Cactus pears (Opuntia ficus-indica) are draught resistant plants originated in Mexico. Their flattened stem segments, called cladodes, have moisture, protein and fibre contents of 92, 1-2 4-6% respectively, a pectin content the range 0.8-3.3% depending on species. They also contain certain concentration carotenoids which special interest because their antioxidant activity. This work is aimed to identify quantify main present stems evaluate effect thermal treatments activity phenolic...

Flavonoids are a big group of polyphenols low molecular weight with in vitro antioxidant properties. In this study, the laccase and tyrosinase from Ustilago maydis were partially characterized their effect on activity some phenolic compounds was investigated. Since enzymatic polymerization detected, size aggregates determined related to activity. Morphology polymers analyzed by atomic force microscopy. The results showed that laccase- tyrosinase-catalyzed quercetin produced relatively higher...

Soluble or fermentable fibre has prebiotic effects that can be used in the food industry to modify composition of microbiota species benefit human health. Prebiotics mostly target Bifidobacterium and Lactobacillus strains, among others, which fight against chronic diseases since colonic fermentation produces short chain fatty acids (SCFAs). The present work studied changes produced polyphenolic compounds during vitro digestion gel (AV) a polysaccharide extract (AP) from Aloe vera, after...

Pomegranate juice (Punica granatum) has been used since ancient times in traditional medicine (Unani Medicine, Ayurveda); its main compounds are anthocyanins and ellagic acid, which have anti-inflammatory, antioxidant, hepatoprotective, cardiovascular health effects. The objective was to evaluate the effect of pomegranate on inflammation, blood pressure, vascular physiological markers associated with obesity induced by a high-fat diet murine model. results show that reduces concentration...

Pap smear screening is a widespread technique used to detect premalignant lesions of cervical cancer (CC); however, it lacks sensitivity, leading identifying biomarkers that improve early diagnosis sensitivity. A characteristic the aberrant sialylation involves abnormal expression α2,6 sialic acid, specific carbohydrate linked glycoproteins and glycolipids on cell surface, which has been reported in CC lesions. This work aimed develop method differentiate lines primary fibroblasts using...

The genus Capsicum provides antioxidant compounds, such as phenolics and carotenoids, into the diet. In Mexico, there is a wide diversity of species varieties chilli peppers, fruit which has local cultural gastronomic importance. present study, relationship carotenoid phenolic profiles with RAPD fingerprint three different commercial cultivars peppers seven regions Mexico was investigated. Through RAPD, were differentiated by means primers (OPE-18, MFG-17, MFG-18, C51, C52). genetic distance...

Obesity is characterized by the excessive accumulation of fat, which triggers a low-grade chronic inflammatory process. Currently, search for compounds with anti-obesogenic effects that help reduce body weight, as well associated comorbidities, continues. Among this group are plant extracts and flavonoids great diversity action mechanisms their beneficial effects, such anti-inflammatory and/or signaling molecules. In bark Tabebuia rosea tree, there different classes metabolites properties,...

Through fishing and aquaculture activities, humans have access to fish, which are a basic food source in the diet due their nutritional value. Fish widely distributed commercialized worldwide different products (e.g., whole fresh, filleted, sliced, frozen, dried, smoked, salted, canned among others). Because of composition value, fish highly susceptible spoilage contamination, mainly by microorganisms, compromising safety, shelf life, availability; therefore, consuming can become risk public...

Abstract BACKGROUND: Some phenolic compounds, such as ferulic acid and p ‐coumaric acid, exist in the form of free acids, fruits, rice, corn other grains. Thermal treatment (121 °C at 15–17 psi) for different times on ferulic, cinnamic acids well equimolar mixtures these was investigated. RESULTS: Ferulic underwent decarboxylation, yielding dimeric products formed through their corresponding radical intermediates, while recovered unreacted. High‐performance liquid chromatography analysis...

Abstract The microbiota associated with spontaneous fermentation of vegetables in a saline substrate may represent an important group bacteria the food industry. In this work, lactic acid (LAB) Weissella cibaria, Lactobacillus plantarum, paraplantarum , and Leuconostoc citreum were identified by partial 16S rRNA gene sequence analysis. addition, entophytic such as Pantoea eucalypti, anthophila, Enterobacter cowanii asburiae detected, but they irrelevant for process inhibited after 12 h when...

The Mexican bean weevil, Zabrotes subfasciatus (Boheman), is a major insect pest widely distributed in northwestern Mexico. affects the common postharvest, causing losses of 25-40%. One alternative to synthetic insecticide for controlling use Beauveria bassiana (Bals.), which by secreting hydrolytic enzymes able infect adults Z. subfasciatus. In this study, strain B. code B02 with greatest pathogenicity was selected from 10 native strains. Proteolytic and chitinolytic activity were measured...

In this work the polymerization of catechin, epicatechin, and resveratrol was carried out through a peroxidase oxidation process in order to improve biological activity these phenolic compounds. The antioxidant oligomers evaluated by their ability scavenge reactive oxygen species (ROS) capacity chelate metal ions Fe2+ Cu2+. antitumor effect determined induce toxicity T24 human bladder cancer cell line. By enzymatic oxidation, it possible produce with significantly higher than preceding...

An easily prepared fluorescent bioconjugate colloidal solution based on gold nanoparticles is reported for the detection of Salmonella. This was by conjugation staphylococcal protein A surface nanoparticles, followed biofunctionalization over this layer with fluorescein isothiocyanate-labeled antibodies. The plasmon resonance band observed in ultraviolet–visible spectrum showed a shift to low energy after covering and broadening antibody. Surface-enhanced infrared spectroscopy absorption...

The main treatment alternative for cervical cancer is cisplatin chemotherapy. However, the resistance of tumor cells to cisplatin, in addition side effects, limits its use. flavonoid naringenin has shown cytotoxic effects on and may be considered as a coadjuvant cancer. In present study, effect cell viability, cytotoxicity, proliferation, apoptosis invasion was evaluated HeLa spheroid cultures. Naringenin impaired viability indicated by low ATP levels caused concentration- time-dependent...