Houttuynia cordata is one of the most potential medicinal and edible wild herb whose resources have decreased sharply due to excessive exploitation. Besides its slow agamic propagation, problems of browning and non-dedifferentiation have prevented the application of micropropagation in H. cordata. Through 4 week pre-culture in darkness and wounding after 1 week pre-culture, the browning rate of...

Enzymatic browning is a major postharvest quality defect of romaine lettuce (Lactuca sativa L.). This study provides the first analysis relationship between leaf ribs and stems across twelve genotypes (ten cultivars, breeding line, plant introduction). While all samples showed progressive increase in index (BI) decline lightness (L*) hue (h°) during 5 °C storage, differences rate development we...

We used twelve Landsat scenes from the 1980s–2009 and regional 2000–2009 MODIS data to examine the long-term trend in the normalized difference vegetation index (NDVI) within unburned areas of the Alaskan boreal forest. Our analysis shows that there has been a declining trend in NDVI in this region, with the strongest ―browning trend‖ occurring in eastern Alaska where the climate during the gro...

6 Dienes, L., and Scheff, Jour. Immunol., 12, 123 (1926). 6 Lewis, P. A., Jour. Exper. Med., 65 (1927). 7 Furth, J., and Aronson, Jour. Immunol., 13 (1927). 8 Freund, J., Ibid., 13, 79 (1927). 9 Craig, Charles F., and Nichols, Jour. Exper. Med., 16, 336 (1912). 10 Fairley, N. H., Jour. Path. and Bacter., 30, 1 (1927). 11 Meyer, Kurt (quoted by Browning, C. H.), Brit. Med. Jour., No. 3490, Novem...

The inhibitory effect of onion extract on cassava leaf polyphenol oxidase was investigated. The polyphenol oxidase from cassava leaves was strongly inhibited by various anti-browning agents such as L-ascorbic acid and L-cysteine. The percentage of inhibition increased with the increased of anti-browning agents concentrations. The addition of heated onion extract exhibited a stronger inhibitory ...

regarding to economical importance of kiwi fruit, its wastes such as highly ripe or partially dried up fruits can be used to produce more economically valuable products like fruit leather. therefore, the aim of present study was the effective factor evaluation of kiwi fruit leather production. the samples were studied in two groups, raw and cooked fruits which were treated in a boiling water ba...

microwave assisted fluidized bed drying is a novel drying technique which reduces drying time and yields higher quality products. in this study the effect of this method on color changes of whole and cut hazelnut kernels was investigated. the parameters of color and resulting total color change, chroma, hue angle and browning index were also calculated during drying in three temperatures (40, 5...

Chilling damage under 15ºC in anthurium cut flowers reduces the vase-life, quality and marketability of the product. In the present experiment, GABA postharvest treatment (0, 1 and 5 mM) was studied on the vase-life, total soluble solid (TSS), H2O2 content, proline content, spathe browning, catalase and superoxide dismutase enzymes activity of Anthurium andraeanum...