Analysis of Fresh and Dried Apricot

Witherspoon, J. M.; Jackson, J. F.

doi:10.1007/978-3-642-79660-9_7

Cited by 16 publications

(16 citation statements)

References 11 publications

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“…Values ranged between 13% and 19% (Table 3), which is in agreement with previous work in apricot (Witherspoon and Jackson 1996;Witherspoon 1999). Cultivar 'Búlida' showed the lowest value (13.0%), while the highest percentage dry matter (19.4%) occurred for selection 'Z 203/8'.…”

Section: Evaluation Of Physical Attributessupporting

confidence: 90%

“…The percentage dry matter is an important quality attribute, especially in the case of apricot cultivars used for production of dried fruit. There is a close relationship between the DM content and quality attributes such as the fruit juiciness and soluble solids content; therefore, valuable information regarding fruit quality is given by this parameter (Witherspoon and Jackson 1996).…”

Section: Evaluation Of Physical Attributesmentioning

confidence: 99%

“…TA was determined by titrating 5 ml of juice with 0.1 mol l -1 NaOH to pH 8.1 by an automatic titration system (AOAC 1984); data are given as g malic acid/100 ml, since this is the dominant organic acid in apricot Witherspoon and Jackson 1996). The SSC was determined with an Atago N1 hand-held refractometer (Atago Co., Tokyo, Japan); data are given as°Brix.…”

Section: Analysis Of Quality Attributesmentioning

confidence: 99%

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Phenotypic diversity and relationships of fruit quality traits in apricot (Prunus armeniaca L.) germplasm

2007

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Fruit quality attributes were studied for two consecutive years in forty-three apricot cultivars and selections grown in a Mediterranean climate. Physical parameters (weight, size, flesh and skin colour, percentage of blush, firmness and percentage of dry matter), chemical parameters (total soluble solids content and acidity) and sensory parameters (attractiveness, taste, aroma and texture) were evaluated. A high variability was found in the set of the evaluated apricot genotypes and significant differences were found among them in all studied quality attributes. Year-by-year variations were observed for some pomological traits such as harvest date, flesh colour, fruit weight, firmness and soluble solids content. A high correlation was found among some apricot quality attributes. In addition, principal component analysis (PCA) made it possible to establish similar groups of genotypes depending on their quality characteristics as well as to study relationships among pomological traits in the set of apricot genotypes evaluated.

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Section: Evaluation Of Physical Attributessupporting

confidence: 90%

Section: Evaluation Of Physical Attributesmentioning

confidence: 99%

Section: Analysis Of Quality Attributesmentioning

confidence: 99%

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Phenotypic diversity and relationships of fruit quality traits in apricot (Prunus armeniaca L.) germplasm

2007

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“…Other sugars such as glucose, fructose, maltose, sorbitol and raffinose are also present at varying lesser concentrations (Witherspoon & Jackson, 1995). The collective concentrations of the sugars present in a given fruit are known as a sugar profile.…”

Section: Introductionmentioning

confidence: 99%

Modification of sugar profiles in California adapted apricots (Prunus armeniaca L.) through breeding with Central Asian germplasm

2006

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Central Asian apricot germplasm was used in hybridizations with California adapted apricots to increase Brix levels and improve fresh eating quality. Fruit from parental trees, the F 1 hybrid and two backcross families were evaluated for fruit quality traits and analyzed by HPLC for specific sugar content. The F 1 hybrid between Central Asian and California adapted apricots was intermediate to its parents in many of the evaluated characteristics and levels of specific sugars. When the F 1 hybrid was backcrossed to California adapted apricots 'Lorna' and 'Robada,' the resulting hybrids were diverse in Brix, juice acidity, fruit size and profiles of specific sugars. Glucose: fructose ratios higher that 3.3 were encountered in fruit from five of the 22 analyzed seedlings, and fructose: sorbitol ratio ranged from 0.67 to 6.46. Brix and total sugar content correlated significantly with each other and with both sucrose and glucose. No significant correlations existed between sorbitol and any of the other analyzed sugars, nor with Brix or total sugars. The results demonstrated the extent of sugar profile modification possible in California adapted apricots after just two generations of breeding with Central Asian apricot germplasm.

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“…Several other sugars such as glucose, fructose, maltose, sorbitol and raffinose are also present to lesser and varying degrees (Witherspoon and Jackson 1995). Collectively, the combined concentrations of the sugars present in apricot are known as the sugar profile, and while absolute concentrations of each sugar in a given accession changes year to year, their relative ratios remain quite constant within any given variety (Bassi et al 1996).…”

Section: Sugars Acids and Nutrient Compositionmentioning

confidence: 99%

Apricots

Ledbetter

Temperate Fruit Crop Breeding

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Several dozen publicly-sponsored breeding programs around the world are developing new fresh market and processing apricot cultivars. Apricots have a more limited environmental range than other tree fruits, and therefore, many breeders are interested in broadening adaptations for specific growing regions. Plum Pox Virus resistance is a widely pursued objective and there are ongoing efforts to identify molecular markers that are closely linked to disease resistance. Fruit sugars, acids, pigments and volatile aromatic compounds are being quantified in newly bred and historically important cultivars. Researchers have identified and characterized several stylar ribonucleases associated with self-unfruitfulness. Molecular phylogenetic studies are examining the dispersion routes of apricot germplasm from its centers of origin to those cultivars currently in production. Although several linkage maps have been developed using diverse parents and a wide variety of molecular markers from apricot and other Prunus crops, the scarcity of documented monogenic characters in apricot limits the effectiveness of marker assisted selection for economically important traits.

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Analysis of Fresh and Dried Apricot

Cited by 16 publications

References 11 publications

Phenotypic diversity and relationships of fruit quality traits in apricot (Prunus armeniaca L.) germplasm

Phenotypic diversity and relationships of fruit quality traits in apricot (Prunus armeniaca L.) germplasm

Modification of sugar profiles in California adapted apricots (Prunus armeniaca L.) through breeding with Central Asian germplasm

Apricots

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