The effect of storage time on pH, titratable acidity, degrees Brix, organic acids, sugars, amino and color minimally processed cantaloupe melon (Cucumis melo L. var. reticulatus Naud. cv. Mission) was determined at 4 C 20 C. Changes in most the biochemical parameters with were relatively slow lower temperature. At C, a 17% loss soluble solids 2-fold increase acidity occurred after 2 days. Organic acid content also increased considerably this temperature as result production lactic acid....

Resistance to grape powdery mildew ( Uncinula necator BURR.) of 13 known Vitis species and 5 unclassified grapes native China was evaluated. 88 clones were tested with natural infection a subset 34 artificially inoculated during the years 1991-1992. 68 showed resistance U. . In general, we found V. bryoniifolia, davidii , piasezkii resistant However, intraspecific variations observed. Results from this study indicate that Chinese wild may provide valuable germplasm resources for resistance.

ABSTRACT: The effect of processing cantaloupe melon under ultraviolet-C (UV-C) radiation on storage properties the cut fruit at 10 °C was compared with post-cut UV-C treatment and untreated control. Cutting light induced a hypersensitive defense response that resulted in increased accumulation ascorbate peroxidase relative to other 2 treatments. Fruit processed had lowest esterase activity throughout period. Lipase higher treated than control fruit. activity, however, decreased rapidly...

Egg white proteins are an excellent source of nutrition, with high biological and technological values. However, their limited functional properties prevent widespread industrial applications. In this study, the ovalbumin functionality was improved via glycation by Maillard reaction d-lactose. The free amino groups sodium dodecyl sulfate-polyacrylamide gel electrophoresis profile were determined, confirming that occurred between lactose. emulsification conjugate 2.69-fold higher than at pH...

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDistribution and Effect of Grape Maturity on Organic Acid Content Red Muscadine GrapesOlusola Lamikanra, Inyang D. Inyang, Stephen LeongCite this: J. Agric. Food Chem. 1995, 43, 12, 3026–3028Publication Date (Print):December 1, 1995Publication History Published online1 May 2002Published inissue 1 December 1995https://pubs.acs.org/doi/10.1021/jf00060a007https://doi.org/10.1021/jf00060a007research-articleACS PublicationsRequest reuse...

ABSTRACT: The effect of calcium treatment temperature on cut cantaloupe fruit during storage was determined. Fruit dipped in solution at 4°C had lower respiration and moisture loss rates than treated ambient temperature. Calcium lowered lipase activity both temperatures, but the more notable where undetectable freshly processed after for 24 h. ability to confer rigidity tissue components low possibly through improved covalent crosslinking, indicated by viscosity measurements indicating...

Changes in volatile aroma constituents of fresh-cut cantaloupe melon with storage were determined by headspace solid-phase microextraction gas chromatography-mass spectrometry. The compounds isolated from the fruit immediately after cutting predominantly aliphatic and aromatic esters. Storage at 4 degrees C caused a considerable decrease concentration esters synthesis terpenoid beta-ionone geranylacetone over period 24 h. This change profile is consistent that stress-induced defense response...

Hydroxylated stilbene contents of a number commercial American red wines were determined by gas chromatography−mass spectrometry. Six stilbenols eluted. Two these identified as cis and trans isomers 3,5,4'-trihydroxystilbene (resveratrol), while the others tentatively mono-, di-, tri-, tetrahydroxystilbenes. cis- trans-resveratrol present in at concentrations ranging from 0.1 to 31.9 ppm for 0.0 13.4 trans. The resveratrol made Vitis rotundifolia (muscadine) grapes higher (P > 0.05) than...

Resistance to grape anthracnose [ Elsinoë ampelina (de Bary) Shear] was evaluated in 13 known Vitis species and five taxonomically undescribed grapes native China. One hundred eight clones of Chinese were tested under field conditions between 1990 1992. Berry infection did not occur these species. Leaves displayed strong resistance anthracnose, although intraspecific variations observed. There no relationship geographical origin the Results from this study indicate that oriental are useful...

Peroxidase in cantaloupe melon (Cucumis melo L. var. reticulatus Naud.), a fruit commonly fresh cut processed, was characterized to determine reaction pathway, optimal conditions for activity and effect of some additives on enzymatic action. Mn2+, CaCl2, NaNO2 kinetin had partial inhibitory effects enzyme activity. Activity effectively inhibited by compounds capable chelating peroxidase heme iron such as diethyldithiocarbamate tiron, but unaffected EDTA. Free radical scavenger, superoxide...

ABSTRACT: The effect on sensory attributes and shelf life of fresh-cut cantaloupe melon subjected to pre-cut heat treatment at 50 °C for 60 min, followed by storage 4 prior cutting, then 10 8 d was determined. Heat reduced the rate respiration moisture loss during cut fruit. also total microbial count 1st prevented growth lactic acid bacteria that occurred in untreated fruit after storage. Sensory evaluations indicate increased intensities desirable such as fruity sweet aromatic flavors,...

Randomly amplified polymorphic DNA analysis was conducted with 14 primers to 17 strains of Xylella fastidiosa. There a high degree similarity among the seven Pierce's disease (PD) (Sxy > 0.93) and oak leaf scorch (OLS) 0.96). However, two groups were different, index 0.67, confirming presence PD cluster suggesting new OLS cluster. The control plum scald (two strains) together periwinkle wilt strain had much smaller (0.44) compared clusters.

Two morphologically distinct types of grapes belonging to the subgenera Euvitis and Muscadinia in genus Vitis are cultivated United States. The former is commonly called bunch while latter usually muscadine. Genetic diversity among these was investigated using RAPD markers. Sixteen grape cultivars, with parentage including V. rotundifolia Michx., vinifera L., several American species, were used for analysis. A total 156 markers produced from 19 random primers, over 90% which polymorphic...

Abstract The effect of UV‐induced stress on the volatile aroma compounds in cut pineapple was compared with that storage at 4 °C for 24 h. Eighteen were identified by solid‐phase microextraction (SPME) fresh‐cut pineapple. Methyl‐2‐methylbutanoate, methyl hexanoate, 5‐hexenoate, ethyl hexanoate and 5‐hexenoate major compounds. Storage h, exposure fruit to UV radiation 15 min caused a considerable decrease concentration esters increase relative amount copaene. This sesquiterpene, when added...

ABSTRACT Consistent storage temperature of 2–5C for fresh‐cut produce is difficult to maintain throughout distribution. This study determined the effects changes on sensory quality cantaloupe. Cantaloupe was processed, packaged and stored 7 days. Samples were maintained at 4 10C (controls) or transferred from after 24 48 h. Descriptive analysis used evaluate aroma, flavor texture days 2, 5 storage. Respiration weight loss monitored. Aroma affected by treatments. Texture a little changes....