Cell-wall polysaccharide modifications during postharvest ripening of papaya fruit (Carica papaya)

Use of infrared microspectroscopy to determine leaf biochemical composition of cassava in response toBacillus subtilisCaSUT007

“…Typically, the leaves of higher plants are composed of epidermal (approximately 10% of total mass), mesophyll (approximately 55% of total mass), and vascular bundle (approximately 33% of total mass) tissues. Previous studies (McCann et al 1992;Kačuráková et al 2000;Wilson et al 2000;Yu et al 2003;Manrique & Lajolo 2004;Yu 2004;Skotti et al 2014) have shown that these three tissue types can be readily distinguished in higher plant leaf tissue sections on the basis of macromolecular chemistry using FTIR microspectroscopy. In this study, we attempted to discern changes in macromolecular biochemistry in the different tissue types of cassava after the stakes were treated with the CaSUT007 strain of B. subtilis.…”

“…It was mentioned that pectin and pectin methyl-esterification which involves plant defense chemical compositions with mainly associated with beta-sheet secondary structure which play an important role in cell wall metabolism (McCann et al 1992;Yu 2004;Skotti et al 2014). These biochemical changes may possibly involve enzymes implicated in degradation processes such as pectinases that catalyze de-esterification of pectin by the action of pectin esterferase and other pectin enzymes Manrique & Lajolo 2004). Interestingly, the peaks in the carbohydrate fingerprint region (1200-1000 cm −1 ) show an increase in absorbance, particularly in the bands at 1076 cm −1 and 1153 cm −1 .…”

“…Combining FTIR microspectroscopy with multivariate data analysis can enable to distinguish spectral fingerprint that can be related to the biochemical changes in a plant (Manrique & Lajolo 2004;Dokken & Davis 2007). This is an emerging technique for studying biochemical changes of plant tissue (Yu 2005).…”

The role of hydrolases in the loss of firmness and of the changes in sugar content during the post-harvest maturation of Carica papaya L. var solo 8

“…The softening of the fruit after harvesting could be due to physical damages during handling and transportation. These damages could increase the susceptibility of the fruit to microbial contamination (Manrique and Lajolo 2004).…”

Evaluation des changements physico-chimiques caractérisant le mûrissement au cours de l’entreposage de trois variétés de bananes <i>Musa spp.</i> (AAB, cv. Corne 1 ; AAA, cv. Poyo et AA, cv. Figue Sucrée)

“…fruit (El Zoghbi, 1994 ;Ali et al, 2004 ;Manrique et Lajolo, 2004). Le mûrissement des bananes au plan visuel, se caractérise par le virage progressif de l'épicarpe du vert au jaune selon plusieurs stades dont l'importance contribue à raccourcir ou à prolonger, à une température donnée, la durée totale du processus (Marchal et Nolin, 1990).…”