Home About us Contact
|
Home About us Contact | ||
|
|
||
Sweet Cherries (sweet + cherry)
Terms modified by Sweet Cherries Selected AbstractsAPPLICATION OF A COMPRESSION-RELAXATION TEST FOR THE CHARACTERIZATION OF BURLAT SWEET CHERRYJOURNAL OF TEXTURE STUDIES, Issue 1 2001PEDRO L. MARQUINA Mechanical parameters of Burlat sweet cherries (Prunus avium) were studied as a function of ripening during three consecutive years by using a penetration test, a compression test between two plates, and a compression-relaxation test. The latter yields the "apparent secant modulus," i. e. the ratio of the initial maximum compression force over the applied strain. This modulus is one of the most useful mechanical parameters to discriminate between batches because its value is clearly related to the variety and degree of ripeness. Thus, the compression-relaxation test consistently allowed the differentiation of cherries in five degrees of ripeness. [source] Ultrastructural and Changes in Pectin Composition of Sweet Cherry from the Application of Prefreezing TreatmentsJOURNAL OF FOOD SCIENCE, Issue 9 2005Jesus Alonso ABSTRACT: Thermal and calcium pretreatments applied to preserve the sweet cherry texture by the freezing/thawing process produced biochemical changes in the pectic substances and ultrastructural alterations to the cells and tissues, which were visible under scanning electron microscopy. Partial dehydration of the epidermic tissue caused by calcium (100 mM CaCl2) and thermal (50 °C/10 min) pretreatment attenuated the surface damage produced by freezing. However, pretreatment at 70 °C/2 min caused partial destruction of the epidermic tissue and plasmolysis of the parenchymatic cells. After freezing, the cell walls in the parenchymatic tissue of the fruits pretreated with 100 mM CaCl2 exhibited swelling as a result of gelling of the cell-wall pectic material. Thermal pretreatments increased the ethylenediaminetetraacetic acid (EDTA)-soluble pectin fraction and reduced the degree of pectin esterification. Thermal treatments at 70 °C, without immersion in calcium, reduced the water- and pectinase-soluble pectin fractions, whereas immersion in calcium prevented depolymerization of these fractions. Immersion in 100 mM CaCl2 increased the water-soluble pectin fraction. [source] Determination of self-incompatible genotypes in sweet cherry (Prunus avium L.) accessions and cultivars of the German Fruit Gene Bank and from private collectionsPLANT BREEDING, Issue 5 2007M. Schuster Abstract Sweet cherries are self-incompatible because of a gametophytic self-incompatibility system. S alleles in the style and pollen determine the crossing relationships. Knowledge of the S allele constitution of cultivars is very important for cherry growers and breeders, and recently, molecular methods have been developed to distinguish the S alleles in sweet cherries. The S allele genotypes of 149 sweet cherry cultivars and clones, including 126 not previously genotyped, were determined by using PCR analysis. Thirteen different S alleles in 40 combinations were distinguished and nine new incompatibility groups were documented. Two new S alleles were identified in five local sweet cherry processing cultivars from southwestern Germany using the second intron primers. The sequence of these alleles was determined and compared to all known sequences available in the NCBI database. The sequences obtained showed high similarities to the alleles S19 and S22, previously described only in wild cherries, Prunus avium L. [source] Assignation of Sweet Cherry Selections to 3 Taste Groupings Based on Perceived Sweetness and SournessJOURNAL OF FOOD SCIENCE, Issue 1 2010Carolyn F. Ross ABSTRACT:, Providing consumers with basic taste properties of sweet cherries at point of purchase would allow consumers to make purchase decisions based on fruit's intrinsic sensory attributes. The objective of this study was to develop a model to predict taste-grouping assignation of cherries into the following categories: (1) low sweetness/high sourness, (2) balance between sweetness and sourness, and (3) high sweetness/low sourness. A sensory panel (n,= 10) was trained to recognize sweetness and sourness in 5 cultivars of sweet cherries and assign a taste grouping based on the perceived balance of sweetness and sourness. Four of these same cultivars were then evaluated for sweetness and sourness by a consumer panel (n,= 117) and instrumentally for titratable acidity (TA) and soluble solids concentration (SSC). Results showed that for 3 of the 4 cherry cultivars, the sweetness/sourness balance of the cherries was not significantly different as evaluated instrumentally or by the trained panel. However, the balance determined by the consumer and the trained panel was different for 3 of the 4 cherry cultivars (P,< 0.05). Based on trained panel perceived sweetness and sourness, a multinomial logit model was developed to predict the assignation of cherry taste grouping. The likelihood of group assignment depended on both the perceived sweetness and sourness of the cherry, with taste groupings agreed upon for 3 of 5 sweet cherry cultivars. As previous studies have indicated a positive relationship between cherry sweetness and sourness to consumer acceptance, these groupings show promise for assisting consumers in cherry selection at the point of purchase. Practical Applications: The prediction models proposed in this study suggest that both sweetness and sourness are important in the cherry characterization and the ratio between the 2 attributes may be appropriate for making taste-grouping assignments. These groupings may then be used to provide additional sensory information to consumers to assist them in cherry selection at the point of purchase. [source] APPLICATION OF A COMPRESSION-RELAXATION TEST FOR THE CHARACTERIZATION OF BURLAT SWEET CHERRYJOURNAL OF TEXTURE STUDIES, Issue 1 2001PEDRO L. MARQUINA Mechanical parameters of Burlat sweet cherries (Prunus avium) were studied as a function of ripening during three consecutive years by using a penetration test, a compression test between two plates, and a compression-relaxation test. The latter yields the "apparent secant modulus," i. e. the ratio of the initial maximum compression force over the applied strain. This modulus is one of the most useful mechanical parameters to discriminate between batches because its value is clearly related to the variety and degree of ripeness. Thus, the compression-relaxation test consistently allowed the differentiation of cherries in five degrees of ripeness. [source] Determination of self-incompatible genotypes in sweet cherry (Prunus avium L.) accessions and cultivars of the German Fruit Gene Bank and from private collectionsPLANT BREEDING, Issue 5 2007M. Schuster Abstract Sweet cherries are self-incompatible because of a gametophytic self-incompatibility system. S alleles in the style and pollen determine the crossing relationships. Knowledge of the S allele constitution of cultivars is very important for cherry growers and breeders, and recently, molecular methods have been developed to distinguish the S alleles in sweet cherries. The S allele genotypes of 149 sweet cherry cultivars and clones, including 126 not previously genotyped, were determined by using PCR analysis. Thirteen different S alleles in 40 combinations were distinguished and nine new incompatibility groups were documented. Two new S alleles were identified in five local sweet cherry processing cultivars from southwestern Germany using the second intron primers. The sequence of these alleles was determined and compared to all known sequences available in the NCBI database. The sequences obtained showed high similarities to the alleles S19 and S22, previously described only in wild cherries, Prunus avium L. [source] Microsatellites isolated in almond from an AC-repeat enriched libraryMOLECULAR ECOLOGY RESOURCES, Issue 3 2004R. TESTOLIN Abstract We have isolated 44 SSRs from an AC-enriched genomic library from almond (Prunus amygdalus Batsch.). Twenty SSRs were screened for their polymorphism in 16 cultivars and for their transportability in seven different Prunus species (peach, nectarine, apricot, European plum, Japanese plum, sweet cherry, sour cherry) and in apple. The expected heterozygosity ranged from 0.62 to 0.89. About 30% of primers gave successful amplification in seven different Prunus species; in two cases amplifications were obtained also in apple. [source] Determination of self-incompatible genotypes in sweet cherry (Prunus avium L.) accessions and cultivars of the German Fruit Gene Bank and from private collectionsPLANT BREEDING, Issue 5 2007M. Schuster Abstract Sweet cherries are self-incompatible because of a gametophytic self-incompatibility system. S alleles in the style and pollen determine the crossing relationships. Knowledge of the S allele constitution of cultivars is very important for cherry growers and breeders, and recently, molecular methods have been developed to distinguish the S alleles in sweet cherries. The S allele genotypes of 149 sweet cherry cultivars and clones, including 126 not previously genotyped, were determined by using PCR analysis. Thirteen different S alleles in 40 combinations were distinguished and nine new incompatibility groups were documented. Two new S alleles were identified in five local sweet cherry processing cultivars from southwestern Germany using the second intron primers. The sequence of these alleles was determined and compared to all known sequences available in the NCBI database. The sequences obtained showed high similarities to the alleles S19 and S22, previously described only in wild cherries, Prunus avium L. [source] Development of a reverse transcription-polymerase chain reaction (RT-PCR) assay for the detection of Amasya cherry diseasePLANT PATHOLOGY, Issue 6 2007Z. Kozlakidis A reverse transcription-polymerase chain reaction (RT-PCR) procedure was developed to detect Amasya cherry disease (ACD) in naturally infected sweet cherry (Prunus avium) leaves sampled from Turkey. The procedure was based on detection of the presence of a mycoviral-like double-stranded RNA (dsRNA) of 5·3 kbp always found in association with ACD, which is probably caused by a fungus. Specific primers were designed to amplify a fragment of the diagnostic dsRNA. The method will improve routine diagnosis of ACD in Prunus spp. [source] | |||||||||||||