ABSTRACT: This research evaluated whether polymers, individually or in mixtures of PVOH and starch, improve the physicochemical characteristics avocados for up to eleven days after harvest. Parameters titratable acidity, respiratory rate, mass loss, total soluble solids dry matter were coated control fruits. The preservation avocado fruits type daisy (Persea americana) treatment with 3% starch (S); 2.25% (A) + 0.5% (P); 1.5% (S) 1% (P), 0.75% (P) 2% (P). Glycerol was added formulation a...

This study aimed to quantify the ash content and determine concentration of heavy metals in roasted ground coffee their respective infusions. The was determined by incineration samples, quantification performed flame atomic absorption spectrophotometry for following metals: cadmium, lead, copper, chromium, nickel, zinc. According analysis, 15% samples were within standards established legislation state São Paulo, which has set an below 5%. In Cd, Cu, Ni, Zn contents did not exceed limit...

Some compounds present in coffee beans can affect consumer health. The study determines the content of heavy metal cultivated Cerrado Mineiro region (Alto Paranaíba – MG, Brazil), to compare values found with legal standards and check how these metals are extracted from respective infusions. Fifty samples were analyzed, taken Alto region, Brazil. Determination quantification done by recording atomic absorption spectrophotometer for mentioned: cadmium (Cd), chromium (Cr), copper...

SPEED Stat is a new spreadsheet program for univariate statistical analyses, focused on the dominant profile of agricultural experimentation. The can perform analysis variance; tests normality, homoscedasticity, additivity, outliers; complex contrasts; multiple comparison tests; Scott-Knott's grouping analysis; regression and others. It has available at speedstatsoftware.wordpress.com.

ABSTRACT In the present work were evaluated effects of propolis coatings various botanical sources on quality traits bananas cv. Prata (Musa sapientum L.) stored at room temperature. ´Prata´ selected and submitted to five postharvest treatments: four applied by immersion in extracts a concentration 2.5% (w/v) control (without coating). Propolis as 1) wild type aqueous extract, 2) hydroalcoholic 3) rosemary green extract 4) red extract. The three-day intervals along 12 days for fresh weight...

Orange (Citrus sinensis) is a non-climacteric fruit that can be stored for long periods. However, the development of physiological and phytopathological disorders limits its postharvest storage. The objective this study was to evaluate effects coating orange with propolis extract on physicochemical characteristics ‘Pera’ during storage under ambient temperature. fruits were selected submitted five treatments, three different forms dip (70% alcohol, hydroalcoholic 2.5%, 5%), two...

This study evaluated the physical and chemical characteristics of papaya ‘Solo’ cv. ‘Golden’ (Carica L.) coated with propolis extract drawn from various botanical sources, during storage at room temperature. Papayas underwent three types dip coating extract, in 2.5% (w v-1) concentration (‘aqueous extract’ ‘hydroalcoholic wild type’, green rosemary’), ambient temperature two controls (without coating, one ‘ambient temperature’ other ‘refrigerated’). The variables weight loss, firmness,...

Proteins are the most abundant macromolecules in living cells and their primary role diet is to supply body with essential amino acids adequate quantities for synthesis maintenance of tissues. The determination protein digestibility foods an important factor estimate quality vitro methodology a fast easy way perform it. This study aimed determine influence lipids on animal vegetable proteins. following sources: oat, beef, chicken, fish pork meats, red beans, milk powder, textured soy (TSP),...

Due to its ease of obtaining, handling, price and biological value, the egg is one most consumed foods in world. However, because it basically for natura use, offers risks when care not observed on storage shelf life. The objective this research was increase life hens eggs (Gallus domesticus) using bee propolis (Apis mellifera). Eggs were covered with a film these compared uncovered ones: unwashed washed eggs. Weight loss, density, Haugh unit, height air chamber survey total coliform,...

O experimento foi conduzido com o objetivo de avaliar efeito da suplementação glicina em dietas diferentes relações treonina:lisina digestíveis sobre a atividade enzimas que metabolizam treonina. Foram utilizados 560 pintos corte machos, linhagem Cobb, durante período 8 21 dias idade, distribuídos delineamento inteiramente casualizado, num arranjo fatorial 3 × 2 + 1, composto três (55; 65 e 75%), ou não glicina, mais um tratamento adicional, contendo farinha carne ossos relação 65%....

The high perishability of papaya (Carica L.) reduces its lifespan as well limits marketing. Coating the fruits is an alternative to aid food preservation. We aimed evaluate effects coating propolis extract on physicochemical characteristics stored at room temperature. Solo papayas cv. 'Golden' were randomly divided into five postharvest treatment groups, three forms dip-coating (70% alcohol, hydroalcoholic 2.5%, and 5%) two controls (one uncoated one with refrigerated fruits). weight loss,...

Insect infestation of grains causes several types damage, including reduced grain weight, heat damage and consequent deterioration, diminished market value, decreased nutritional value due to consumption by insects. The goal this study was compare the digestibility, chemical score, protein digestibility corrected amino acid score (PDCAAS), efficiency ratio (PER), net (NPR) infested uninfested flours. This found that flours had higher nitrogen contents than presence insects did not alter...

ABSTRACT Climacteric fruits have short postharvest shelf life. Coating is an alternative to minimize fruit ripening and post-harvest losses. Maize starch (S) polivinilic alcohol - PVOH (P), isolated or blended, can be used in the formulation of coatings. However, little known about potential PVOH-containing coatings conservation fruits. Papaya were aftercoated with 5 coating formulations: 3% (S), 2.25% S + 0.75% P, 1.5% P P. The kept at room temperature (20 ± °C 70 10% RH) physicochemical...