Fruit color development, anthocyanin content, standard quality, volatile compound emissions and consumer acceptability of several ‘Fuji’ apple strains

2012 ◽  
Vol 137 ◽  
pp. 138-147 ◽  
Author(s):  
I. Iglesias ◽  
G. Echeverría ◽  
M.L. Lopez
Keyword(s):  
Volatile Compound ◽  
Fruit Color ◽  
Consumer Acceptability ◽  
Anthocyanin Content ◽  
Color Development ◽  
Standard Quality ◽  
Fuji Apple

scholarly journals FRUIT CLUSTER THINNING, SHADIHG, AND DEFOLIATION ON FRUIT COLOR DEVELOPMENT OF RELIANCE GRAPES

HortScience ◽  
1992 ◽  
Vol 27 (6) ◽  
pp. 600a-600 ◽  
Author(s):  
Yu Gao ◽  
G. A. Cahoon
Keyword(s):  
High Performance ◽  
Fruit Color ◽  
Soluble Carbohydrates ◽  
Anthocyanin Content ◽  
Total Anthocyanin ◽  
Color Development ◽  
Shade Cloth ◽  
Anthocyanin Profile ◽  
Total Anthocyanin Content ◽  
Cluster Thinning

Significant differences in fruit color were created with fruit cluster thinning (20, 40, and 60 clusters/vine), cluster shading (full sun as control, 55% shading, and 95% shading using shading cage constructed of shade cloth), and defoliation (3, 6, 9, 12, and 15 leaves/cluster). Fruit cluster shading and defoliation treatments decreased red fruit color (characterized by Hunte Color a). Fruit cluster thinning increased red fruit color. Anthocyanin profile of Reliance grape was characterized as cyaninidin-3-glucoside and delphinidin-3-glucoside using Paper Chromatography and Thin Layer Chromatography. Analyses of total anthocyanin content (pH shift method), individual anthocyanin and soluble carbohydrates content (High Performance Liquid Chromatography), are being conducted to determine effects of carbohydrate allocation to fruit and sun light on fruit color of Reliance grapes.

DFR and PAL gene transcription and their correlation with anthocyanin accumulation in Rhodomyrtus tomentosa (Aiton.) Hassk.

2018 ◽  
Vol 44 (3) ◽  
pp. 289-298
Author(s):  
Bao-Jun Zhu ◽  
Qian Wang ◽  
Jing-Hui Wang ◽  
Lin-Lin Gao ◽  
Jing-Wen Zhang ◽  
...  
Keyword(s):  
Expression Patterns ◽  
Pcr Analysis ◽  
Anthocyanin Synthesis ◽  
Anthocyanin Content ◽  
Transcript Levels ◽  
Color Development ◽  
Phenylalanine Ammonialyase ◽  
Maturity Period ◽  
Late Maturity ◽  
Rhodomyrtus Tomentosa

Abstract Objectives Rhodomyrtus tomentosa (Aiton.) Hassk. (R. tomentosa) is rich in nutrients and has multiple pharmacological applications. Anthocyanins confer color to the flowers and berries of R. tomentosa and provide protection against photodamage. The dihydroflavonol 4-reductase gene (DFR) and phenylalanine ammonialyase gene (PAL) are crucial for anthocyanin synthesis. Methods DFR and PAL transcript levels and anthocyanin content in the pigmented organs of R. tomentosa were investigated through qRT-PCR analysis and spectrophotometry, respectively. The glyceraldehyde-3-phosphate dehydrogenase (GAPDH) gene was selected as the reference gene for the normalization of DFR and PAL transcript levels. Results Transcript levels of DFR and PAL were higher in organs with vigorous metabolism than those in senescent organs. DFR and PAL transcript levels were up-regulated during the initial and middle-maturity periods of fruit. These expression patterns are consistent with fruit color development. The highest transcript levels of PAL and DFR were observed during the middle-maturity period or the red-fruit period. Conclusion During the late maturity period of R. tomentosa fruit, the transcript levels of the two genes were down-regulated even though anthocyanins were continuously accumulated, which was different from the accumulation of anthocyanins in some late mature fruits.

scholarly journals Foliar Application of Phosphorus Improves Apple Fruit Color During Ripening

2015 ◽  
Vol 63 (4) ◽  
pp. 1195-1200 ◽  
Author(s):  
Franci Štampar ◽  
Jan Bizjak ◽  
Robert Veberič ◽  
Jerneja Jakopič
Keyword(s):  
Skin Color ◽  
Total Phenolics ◽  
Foliar Application ◽  
Apple Fruit ◽  
Fruit Color ◽  
Anthocyanin Content ◽  
Red Color ◽  
Total Anthocyanins ◽  
Quercetin Glycosides ◽  
Apple Production

The red color of skin is a much desired property in apple production. For better red fruit coloration the applications of foliar fertilizers on the basis of calcium and phosphorus are used. In the present study ‘Braeburn’ apple trees were sprayed twice with Phostrade Ca (phosphorus), 5 and 3 weeks before harvest. In 7-days intervals fruit color, the content of flavonoids and enzyme activity involved in the synthesis of anthocyanins have been monitored. Foliar application of Phostrade Ca caused a more intense red skin color of apples and higher anthocyanin content. Their level increased during ripening, in treated apples the content of total anthocyanins was 20-fold higher at harvest while in control apples only 9-fold higher compared to the initial values. Cyanidin 3-galactoside was the most abundant anthocyanin (80 to 86% of total anthocyanins), followed by cyanidin 3-arabinoside, cyanidin 3-glucoside, cyanidin 3-xyloside and cyanidin 7-arabinoside. Prostrade Ca increased the levels of all quercetin glycosides, with the exception of quercetin 3-rhamnoside. No significant influence of Phostrade Ca on the content of hydroxycinnamic acids, dihydrochalcones, flavanols and total phenolics has been monitored. The activity of FHT and DFR increased during ripening but Phostrade Ca influenced only higher activity of DFR.

scholarly journals Characterizing and Quantifying Anthocyanins in Red Pears and the Effect of Light Quality on Fruit Color

1995 ◽  
Vol 120 (5) ◽  
pp. 785-789 ◽  
Author(s):  
Maria Claudia Dussi ◽  
David Sugar ◽  
Ronald E. Wrolstad
Keyword(s):  
High Performance ◽  
Light Quality ◽  
Color Space ◽  
Aluminum Foil ◽  
Fruit Color ◽  
Skin Extract ◽  
Anthocyanin Content ◽  
Fruit Peel ◽  
A Minor ◽  
Effect Of Light

The anthocyanin in `Sensation Red Bartlett' pear skin was characterized and quantified, and the effect of light quality on fruit color development was evaluated. Anthocyanin concentration was related to fruit chromaticity values. Pigments were analyzed using high-performance liquid chromatography (HPLC) and thin-layer chromatography (TLC). One of two spots detected in the TLC chromatogram did not change color with molybdate sprays, indicating the possible presence of peonidin. HPLC analysis confirmed the presence of a major and a minor pigment, which co-eluted with cyanidin 3-galactoside and peonidin 3-galactoside. Monomeric anthocyanins in the pear skin extract were 6.83 mg/100 g of fruit peel. To study light quality, gelatin filters allowing passage of different wavelengths of-light were attached over the exposed side of `Sensation Red Bartlett' pears 1 month before harvest. Chromaticity was recorded before the filters were attached and after their removal at harvest using the Commission Internationale del'Eclairage (L*, a*, and b*) color space coordinates. Following color measurements, anthocyanin was extracted from individual skin disks. Skin beneath all filters yielded less hue than the control. Wavelengths that transmit above 600 nm had the largest effect on chroma, a*, and b* values. Fruit wrapped in aluminum foil to obscure all light had the highest luminosity. Wavelengths from 400 to 500 nm gave darker, less chromatic, and redder pear fruit. All treatments yielded higher anthocyanin content than the control. There was a tendency toward increased anthocyanin content with longer wavelengths. The simple linear regression of the log anthocyanin content on L* value and (a*/b*) provided an R2 = 0.41.

scholarly journals THE EFFECT OF CALCIUM ON PAPAYA FRUIT RIPENING

HortScience ◽  
1992 ◽  
Vol 27 (6) ◽  
pp. 679a-679
Author(s):  
Yunxia Qiu ◽  
Robert E. Paull
Keyword(s):  
Sodium Citrate ◽  
Chelating Agent ◽  
Fruit Color ◽  
Fruit Firmness ◽  
Ripe Fruit ◽  
Soil Fertilization ◽  
Color Development ◽  
Calcium Fertilization ◽  
K Fertilization

Over ripe and abnormally soft fruits occur often during papaya shipments to the mainland U.S.A. Calcium fertilization to the soil did not always increased Ca concentration in the mesocarp. Calcium plus K treatment was more effective at increasing the Ca concentration in the mesocarp than Ca treatment alone. Calcium and K fertilization did not affect the fruit color development. There was a positive correlation between mesocarp Ca concentration and ripe fruit firmness, with no relationship between K or Mg concentration and ripe fruit firmness. Vacuum infiltration with CaCl2, MgCl2, KCl to mesocarp plugs in vitro showed that Ca significantly delayed softening and reduced C2H4 production, and that MgCl2 and KCl also slowed the softening. Use of the chelating agent sodium citrate increased the rate of softening, probably, by removing Ca from the cell wall. We conclude that Ca is an important factor in fruit firmness and that the increase of Mg and K by infiltration has different effects on fruit firmness from that by soil fertilization.

scholarly journals 613 P3 287 LIGHT PENETRATION AFFECTS COLOR AND FLAVOR OF'RED DELICIOUS' APPLES

HortScience ◽  
1994 ◽  
Vol 29 (5) ◽  
pp. 520a-520
Author(s):  
T.W. Miller ◽  
D.S. Mattinson ◽  
B.C. Bostick ◽  
E. Fallahi ◽  
J.K. Fellman
Keyword(s):  
Fruit Color ◽  
Anthocyanin Content ◽  
Anthocyanin Accumulation ◽  
Light Penetration ◽  
Shade Cloth ◽  
Apple Peel ◽  
Fruit Maturity ◽  
Harvest Data ◽  
Role Of Light

Light has long been known to stimulate anthocyanin accumulation in apple peel, but changes in apple flavor as a result of fruit shading is poorly understood. Some growers maintain that the redder the strain, the less flavorful the fruit. An experiment was conducted to help characterize the role of light in biosynthesis of color versus flavor molecules in apple peel. Bags fashioned from 3 meshes of shade cloth were fastened around fruitlets of red delicious strains `Starkrimson' and `Topred' on M26, MM106, and MM111 by 21 DAFB to produce average light ranges of 100%. 41-68%, 12-30%, and < 1% of full sun incident upon the fruit. Observations from the 1993 harvest indicate that anthocyanin content of peel increased with fruit maturity and level of sunlight. Concentrations of flavor molecules were higher with low and moderate shade than with full sun, and also increased with fruit maturity. From this harvest data, it appears that apple flavor can be enhanced by lightly shading fruit without substantially reducing fruit color.

scholarly journals Effect of Particle Film on Fruit Sunburn, Maturity and Quality of `Fuji' and `Honeycrisp' Apples

2002 ◽  
Vol 12 (1) ◽  
pp. 87-90 ◽  
Author(s):  
James R. Schupp ◽  
Esmaeil Fallahi ◽  
Ik-Jo Chun
Keyword(s):  
New York ◽  
Fruit Weight ◽  
Fruit Color ◽  
Agricultural Crops ◽  
Mineral Concentration ◽  
Color Development ◽  
Red Color ◽  
Fruit Maturity ◽  
Honeycrisp Apples

Studies were initiated in Idaho and New York to determine the effects of Surround, a kaolin clay particle film product recently labeled as a crop protectant for agricultural crops, on fruit maturity and quality of `Fuji' and `Honeycrisp' apples (Malus×domestica) and fruit mineral concentration of `Fuji' apples. Surround reduced fruit weight, red color, and the incidence of sunburn of `Fuji' apples in Idaho. Sunburn did not occur on `Honeycrisp' in the New York study. In that study, Surround had no effect on fruit weight or red fruit color when applied in May and June but reduced fruit weight and red color when applied later. The reduction in red color development observed in both `Fuji' and `Honeycrisp' was not related to mineral nutrients or to a delay in fruit maturity. Surround applications resulted in undesirable residues in the basin and in the cavity of harvested fruit that were not satisfactorily removed by brushing on a commercial packing line. While effective for reducing sunburn, Surround was ineffective for increasing red fruit color of apples.

scholarly journals Anthocyanin content in eggplant breeding lines selected in VNISSOK under condition of hydroponic small-size cultivation

2009 ◽  
pp. 37-42
Author(s):  
M.I. Mamedov ◽  
O.N. Pyshnaya ◽  
H.A. Shmykova ◽  
V.M. Verba
Keyword(s):  
Fruit Color ◽  
Anthocyanin Content ◽  
Fruit Peel ◽  
Breeding Lines

Fruit color of eggplants is one of the most important traits. In the fruit peel several anthocyanins were identified. It was shown that in fruits of Japanese accessions the basic an anthocyanin was delphinidin-3-(p-coumaroyl rutinoside)-5-glucoside (nasunin), while other accessions contained tulipanin (delphinidin-3-O-rutinoside). The breeding lines for hydroponic small-size cultivation that was selected by researchers from VNISSOK contained 0,021-0,2l7 grams of anthocyanin per kilogram.

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