1994
DOI: 10.1021/jf00048a048
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Impact of Heating on Carrot Firmness: Changes in Cell Wall Components

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Cited by 122 publications
(76 citation statements)
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“…The mean of the penetrometer measurements (76 N) with the skin removed at 2 and 3 months of storage for the uncooked squash was significantly higher (P< 0.001) than that of the cooked squash tissues (41N) ( Table 1). This is most likely explained by heat induced depolymerisation of the pectic substances, which results in a high degree of softening during the cooking of fruits and vegetables (Bourne 1983;Greve et al 1994).…”
Section: Resultsmentioning
confidence: 99%
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“…The mean of the penetrometer measurements (76 N) with the skin removed at 2 and 3 months of storage for the uncooked squash was significantly higher (P< 0.001) than that of the cooked squash tissues (41N) ( Table 1). This is most likely explained by heat induced depolymerisation of the pectic substances, which results in a high degree of softening during the cooking of fruits and vegetables (Bourne 1983;Greve et al 1994).…”
Section: Resultsmentioning
confidence: 99%
“…The analysis of the total CWP fractions showed that buttercup squash 'Delica' cell walls were composed of 34% pectin, 26% hemicellulose, and 39% cellulose ( Table 4). The degree of polymerisation and esterification of the pectic polysaccharide chains and the amount of cross-linking of pectin molecules together with hemicelluloses and cellulose affect the overall textural properties of fruits and vegetables (Bourne 1983;Greve et al 1994). The Texture Profile analysis of buttercup squash shows that most of the textural parameters decreased during storage.…”
Section: Gas Chromatographic Analysis Of Cell Wall Polysaccharidesmentioning
confidence: 99%
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“…Vegetables soften upon heating due both to turgor loss caused by cell membrane disruption and to changes in cell wall polymers, 6,29,30 particularly the pectic substances, which are involved in holding the cells together. 31 During prolonged heating cells may become completely separated resulting in major loss of textural strength.…”
Section: Discussion and Conclusion Blanchingmentioning
confidence: 99%
“…En estos procesos, las pectinas son degradadas y solubilizadas de la pared celular (Li et al, 2005), lo que produce una pérdida en la firmeza de los tejidos (Greve et al, 1994;Stolle-Smiths et al, 1997). Por otra parte, la acción de enzimas como la pectinmetilesterasa (PME) tendrá un efecto muy marcado en la calidad de los productos frescos o procesados, en relación también con su textura.…”
Section: Vi1 Justificaciónunclassified