Interrelation among measurements of browning of processed potatoes and sugar components

Schwimmer, Sigmund; Hendel, C. E.; Harrington, W. O.; Olson, Robert L.

doi:10.1007/bf02855276

Cited by 28 publications

(12 citation statements)

References 10 publications

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“…Reducing sugar causes discolouration in the product due to caramelization while frying, drying and storage (Ross, 1948;Schwimmer, Weston, & Potter, 1957). Blanching helps to minimize reducing sugar (Califano & Calvelo, 1983).…”

Section: Introductionmentioning

confidence: 98%

Whirling bed blanching of potato cubes and its effects on product quality

Mukherjee

Chattopadhyay

2007

Journal of Food Engineering

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Section: Introductionmentioning

confidence: 98%

Whirling bed blanching of potato cubes and its effects on product quality

Mukherjee

Chattopadhyay

2007

Journal of Food Engineering

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“…Cold-induced metabolic changes leading to the accumulation of SUC, Glc, and Fru, resulting from starch-sugar interconversion, are typically observed in harvested potato tubers (Isherwood, 1973). This sweetening during long-term conservation of tubers at low temperature is negatively correlated with the quality of processed products (Schwimmer et al, 1957). The characterization and the study of coldinducible genes expressed in potato tubers and their promoters is, therefore, part of a strategy to suppress coldtemperature sweetening by manipulating the expression of certain genes at low temperature.…”

mentioning

confidence: 99%

Transcripts Accumulating during Cold Storage of Potato (Solanum tuberosum L.) Tubers Are Sequence Related to Stress-Responsive Genes

Berkel¹,

Salamini²,

Gebhardt³

1994

Plant Physiol.

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During the adaptation of plants to low temperature, changes in gene expression can be induced in a variety of tissues. Lowtemperature-regulated gene expression was studied in cold-stored potato (Solanum tuberosum 1.) tubers by two-dimensional electrophoresis of in vitro translation products. As a response to cold treatment, the relative amount of mRNA encoding at least 26 polypeptides changed. By differential screening of a cDNA library, 16 clones corresponding to cold-inducible transcripts were isolated. lhey were classified into four non-cross-hybridizing groups. RNA hybridizations using representative clones from each group revealed different temporal accumulation patterns for the coldinducible transcripts. mRNAs homologous to the cDNA clones were first detectable after 1 to 3 d of cold treatment, and the highest level of expression was reached after 3 to 7 d. Transcripts corresponding to cDNA clones C113 and C119 were transiently expressed, whereas the steady-state level remained high for cDNA clones C17 and Cl2l during the cold storage period of 4 weeks. lhe DNA sequences of two cDNA clones, C17 and C119, have been determined. lhe polypeptide predicted from the DNA sequence of C119 is sequence related to small heat-shock proteins from other plant species. lhe deduced protein sequence of C17 exhibits strong homology to the dehydrin/RAB group of dehydration stress-and abscisic acid-inducible polypeptides and to cold-induced proteins from Arabidopsis and spinach.Higher or lower than optimal temperatures exert stress on plants and induce changes in cellular metabolism leading to adaptation (Sachs and Ho, 1986;Guy, 1990). Severa1 temperate plants increase their freezing tolerance ("cold hardening") when exposed to low, nonfreezing temperatures. In storage organs of many such species, sugars accumulate in response to the cold treatment, a phenomenon known for a long time as "cold sweetening" (Miiller-Thurgau, 1882). Mechanisms and regulation of the biochemical processes leading to cold sweetening are in large part still unclear. What is known is that chilling alters the lipid composition of the cell membranes and increases the enzymic activity of specific steps in different metabolic pathways related to carbohydrate and amino acid metabolism (Guy, 1990;Thomashow, 1990 Sachs and Ho, 1986).The number of studies describing cold-induced variations in mRNA populations is steadily increasing (reviewed by Guy, 1990, andThomashow, 1990). Moreover, a number of cDNA clones encoding cold-regulated transcripts have been isolated from aerial tissue of alfalfa, Arabidopsis, barley, spinach, tomato, and wheat (for review see Cattivelli and Bartels, 1992, and refs. therein). Among the few cold-induced genes for which a possible function has been proposed is C14 of tomato, a gene encoding a protein closely related to thiol proteases (Schaffer and Fischer, 1988).Low-temperature-regulated gene expression in cold-stored potato (Solanum tuberosum L.) tubers is the subject of this paper. Cold-induced metabolic changes leading to the ...

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“…the ratio of glucose to fructose is close to unity (luring at least part of the time of storage (17). TIf invertase is indeed a factor in the accumulation of reducing sugars, information concerning the characteristics of this enzyme and the inhibitor here reported could conceivably lead to means for controlling the reducing sugar content of potatoes (20).…”

mentioning

confidence: 99%