scholarly journals 922 PB 467 TOLERANCE OF THE GALIA cv. OF MELON (Cucumis melo L.). TO IRRADIATION AS A QUARANTINE TREATMENT

HortScience ◽  
1994 ◽  
Vol 29 (5) ◽  
pp. 566c-566
Author(s):  
Fernando Lalaguna
Keyword(s):  
Cucumis Melo ◽  
Dehydroascorbic Acid ◽  
Titratable Acidity ◽  
Sensory Attributes ◽  
Hot Water ◽  
Soluble Solids ◽  
Alternative Treatments ◽  
Ethylene Dibromide ◽  
Cucumis Melo L

The banning of ethylene dibromide put an end to the exportation of Venezuelan melon to the northamerican market and made it a need testing alternative treatments. Melons were purchased from a grower/exporter and alloted in groups of 24 to the following treatments: control, 0.5, 0.75 and 1 KGy, and dip in water at 53C for 1 min. alone and plus 0.5 KGy, then they were stored at about 23C and 70% RH during 2 to 3 weeks in two experiments in one season. All the treatments resulted in comparable ratings for sensory attributes and figures for soluble solids, titratable acidity and ascorbic/dehydroascorbic acid; the melons dipped in hot water showed the lowest decay. With the possible exception of the 1 KGy melons, the treated melons had attributes and lasted as least like the control ones, which indicates that the Galia cv. of melon grown in Venezuela tolerates irradiation with doses useful in quarantine and technological terms.

scholarly journals Nutritional values of traditional open-pollinated melon (Cucumis melo L.) and watermelon (Citrullus lanatus [Thumb]) varieties

2007 ◽  
Vol 13 (2) ◽  
Author(s):  
Cs. Szamosi ◽  
H. Némethy-Uzoni ◽  
G. Balázs ◽  
É. Stefanovits-Bányai
Keyword(s):  
Cucumis Melo ◽  
Citrullus Lanatus ◽  
Titratable Acidity ◽  
Quality Parameters ◽  
Matter Content ◽  
Soluble Solids ◽  
Internal Quality ◽  
Total Phenol Content ◽  
Dry Matter Content ◽  
Cucumis Melo L

The aim of our experiments was to investigate the internal quality parameters of some old melon and watermelon landraces or varieties whether they have any desirable characteristics. Measurements were carried out using 8 different types of melon (Cucumis melo L.) and 8 accessions of watermelon (Citrullus lanatus [Thumb]), which were self pollinated under greenhouse conditions. Besides the determination of dry matter content; soluble solids, titratable acidity of the fruit juices, investigation of carbohydrates, total phenol content was measured by spectrophotometer. Total antioxidant capacities were determined spectrophotometrically using the FRAP method. We found some accesions both among melon and watermelon varieties, which could be characterized by outstanding inner content.

scholarly journals Effects of Led Supplementary Lighting and NPK Fertilization on Fruit Quality of Melon (Cucumis melo L.) Grown in Plastic House

2020 ◽  
Vol 28 (1) ◽  
pp. 111-122
Author(s):  
Somsak Kramchote ◽  
Somchai Glahan
Keyword(s):  
Cucumis Melo ◽  
Fruit Size ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Light Emitting ◽  
Supplementary Lighting ◽  
Solids Content ◽  
Complete Fertilizer ◽  
Cucumis Melo L ◽  
Npk Fertilization

AbstractMelon (Cucumis melo L.) is a high-value fruit in Thailand, usually grown in plastic houses where light could become a major limiting growth factor. This study used melon cultivar ‘#120’ (orange flesh) grown in a plastic house under natural daylight (NDL, control) and with supplementary lighting using light emitting diodes (LEDs) of a combination of red 630 nm, red 660 nm, blue 450 nm, blue 460 nm, white 14000 K, UV 410 nm and IR 730 nm (LED1) or a combination of red 630 nm, red 660 nm, blue 450 nm and blue 460 nm (LED2) applied for 12 h from 6:00 pm to 6:00 am. These lighting treatments were combined with NPK fertilization using complete fertilizer 15–15–15 (N–P2O5–K2O) at 5 g, 7 g (recommended rate) or 9 g per plant. Results showed that LED2 combined with 9 g 15–15–15 was the most effective in increasing plant height, chlorophyll content (SPAD index), fruit size and mass, and peel and flesh thickness. The fruit also developed the desired lighter color (higher L* and lower a* coordinates) and were the firmest and sweetest (highest soluble solids content and lowest titratable acidity) among all treatments.

Note. Non-destructive appraisal of the ripeness in Cantaloupe melons / Nota. Evaluación no destructiva de la madurez en melones Cantaloupe

2000 ◽  
Vol 6 (1) ◽  
pp. 47-51
Author(s):  
L. Almela ◽  
C. Sánchez ◽  
J.A. Fernández-López ◽  
F. Romojaro
Keyword(s):  
Fruit Development ◽  
Cucumis Melo ◽  
Titratable Acidity ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Chromatic Index ◽  
Optimum Ripeness ◽  
Cucumis Melo L ◽  
Non Destructive

This paper attempts to determine the optimum ripeness of Cantaloupe melons ( Cucumis melo L.) by means of a non-destructive technique. Soluble solids, titratable acidity, fruit weight, ethylene emis sion and external color during the fruit development, from 15 days after pollination (DAP) to fruit harvesting (45 DAP) were determined. Changes in color correlated with the changing characteristics of melons. The research was focused on finding a chromatic index to appraise 'harvesting maturity' in a non-destructive way. Among the different relationships investigated ( L/a; a/b; COL = 2000 a/ L.C; CCI = 1000 a/L.b; L/C) the L/C ratio, derived directly from the external reflectance of the fruit, showed the highest correlation with harvesting maturity (35 DAP)

scholarly journals Pre-Harvest Application of Plant Biostimulant on the Quality and Shelf-Life of Yellow Melon (Cucumis melo L.)

2018 ◽  
Vol 10 (2) ◽  
pp. 252 ◽  
Author(s):  
Edna M. M. Aroucha ◽  
Cleiniane M. G. de Sousa ◽  
José Francismar Medeiros ◽  
Glêidson B. de Góes ◽  
Iarajane B. do Nascimento ◽  
...  
Keyword(s):  
Shelf Life ◽  
Soluble Sugars ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Internal Cavity ◽  
Total Soluble Sugars ◽  
Cold Chamber ◽  
Cucumis Melo L ◽  
Quality And Shelf Life ◽  
Plot Design

The purpose this work was to evaluate the influence of pre-harvest application of plant biostimulant on the quality and shelf-life of melon. For this an experiment was established in the “Coopyfrutas”, located in Rio Grande do Norte state/Brazil. The treatments consisted of a combination of factors: melon cultivars (‘Goldex’ and ‘Iracema’) and pre-harvest application of plant biostimulant, Crop Set®, (with and without). At commercial maturity, some fruit of each treatment were sampled and analyzed and the others were stored in a cold chamber at 10±2 ºC and 80±2% relative humidity. The experiment was arranged in a completely randomized split-plot design. The plots consisted of cultivars and Crop Set® application and subplots of different storage time (0, 14, 21, 28, and 35 days after harvest) with eight replications. The characteristics evaluated were length, diameter, internal cavity, external and internal appearance, weight loss, fresh firmness, soluble solids, titratable acidity, pH, SS/TA ratio, and total soluble sugars. Applications of plant biostimulant led to an increase in fruit length and diameter. It reduced fresh firmness and increased the pH of ‘Goldex’ fruit. The total soluble sugars reduced at 35 days of storage in the ‘Iracema’ fruit treated with plant biostimulant.

scholarly journals Strobilurin and boscalid in the quality of net melon fruits

2017 ◽  
Vol 38 (2) ◽  
pp. 543 ◽  
Author(s):  
Ana Claudia Macedo ◽  
Amanda Cristina Esteves Amaro ◽  
Anamaria Ribeiro Pereira Ramos ◽  
Elizabeth Orika Ono ◽  
João Domingos Rodrigues
Keyword(s):  
Cucumis Melo ◽  
Titratable Acidity ◽  
High Ratio ◽  
Soluble Solids ◽  
Active Principle ◽  
Physiological Effects ◽  
Physical Chemical ◽  
Hormonal Balance ◽  
Fruit Mass

Until recently, fungicides were used exclusively for disease control; however observations of physiological effects brought a new concept to the use of these products. Strobilurins have positive physiological effects on crop yield, due to the increase of liquid photosynthesis and better hormonal balance. However, boscalid complements the action of these fungicides, applied alternately or together. The aim of this study was to evaluate the effect of strobilurins (azoxystrobin and pyraclostrobin), boscalid and the mixture of these on the physical-chemical quality of net melon fruits (Cucumis melo var. Reticulatus). The experiment was conducted in the municipality of São Manuel (SP), using the hybrid of Cantaloupe M2-308 net melon, the experimental design was in randomized blocks with five replicates. The treatments used were: T1 - control; T2 - azoxystrobin 60g ha-1 of active principle (a.p.); T3 - boscalid 75g ha-1 of the a.p.; T4 - pyraclostrobin 50g ha-1 of the a.p.; T5 - boscalid (37,5g ha-1) of the a.p. + pyraclostrobin (25g ha-1) of the a.p. The first application of the treatments was carried out at fourteen days after the transplanting of the seedlings and the others at seven day intervals, totaling eight applications throughout the cycle. Two fruits of each plot were collected, which were identified for analysis in the laboratory. The following characteristics were evaluated: fresh fruit mass; mesocarp thickness, pulp texture, peel trajectory, pH, titratable acidity, soluble solids and the ratio. The results were submitted to analysis of variance and the averages compared by the Tukey test at 5% probability using the SISVAR program. The fruits of the plants treated with boscalid 75g ha-1 were the ones that showed higher concentration of soluble solids and low titratable acidity, resulting in a better ratio. Despite the lower value, the fruits of the plants treated with pyraclostrobin 50g ha-1 showed a high ratio value, besides presenting higher value for pulp texture. The mixture of boscalid (37.5g ha-1) + pyraclostrobin (25g ha-1) also showed high values of soluble solids which resulted in a good “ratio” value.

Shelf-life of ‘Golden Reinders’ Apples after Ultra Low Oxygen Storage: Effect on Aroma Volatile Compounds, Standard Quality Parameters, Sensory Attributes and Acceptability

2009 ◽  
Vol 15 (5) ◽  
pp. 481-493 ◽  
Author(s):  
R. Altisent ◽  
G. Echeverría ◽  
I. Lara ◽  
M.L. López ◽  
J. Graell
Keyword(s):  
Shelf Life ◽  
Volatile Compounds ◽  
Principal Component ◽  
Titratable Acidity ◽  
Quality Parameters ◽  
Sensory Attributes ◽  
Soluble Solids ◽  
Oxygen Storage ◽  
Low Oxygen ◽  
Maturity Stages

The aim of this work was to estimate shelf-life potential and understand quality characteristics of ‘Golden Reinders’ apples during ripening after storage under ultra low oxygen (ULO) atmosphere. Fruits, corresponding to two different maturity stages (147 and 155 dafb), were kept at 1 °C in ULO atmosphere (1 kPa O2: 1 kPa CO2) for seven months and subsequently kept at 1 °C in regular air for up to 28 days. Sub-batches were removed weekly and transferred to 20 °C, so that the shelf-life periods at room temperature were 28, 21, 14, 7, and 0 days. Fruit from both maturity stages showed firmness and soluble solids content (SSC) values above the minimum commercial requirements for this variety throughout the post-storage ripening period. However, only earlier harvested fruit maintained high levels of titratable acidity (TA). Production of aroma volatile compounds was low for shorter ripening periods, though it increased progressively as ripeness advanced. Principal component analysis showed the variables that positively influenced acceptability were: octyl acetate, hexyl octanoate, butyl propanoate, propyl pentanoate, and 6-methyl-5-hepten-2-one as aroma volatile compounds; SSC, TA, firmness, and epidermis colour (Hue) as physicochemical parameters; and sourness and sensory firmness as sensory attributes. From a general overview, the optimum shelf-life period for ‘Golden Reinders’ apples would be between 7 and 14 days for both maturity stages.

scholarly journals Pawpaw enriched soymilk beverage

2021 ◽  
Vol 56 (2) ◽  
pp. 105-114
Author(s):  
IF Bolarinwa ◽  
TE Aruna ◽  
RI Ajetunmobi ◽  
JA Adejuyitan ◽  
OW Alawode
Keyword(s):  
Vitamin A ◽  
Physicochemical Properties ◽  
Nutrient Intake ◽  
Titratable Acidity ◽  
Sensory Attributes ◽  
Soluble Solids ◽  
Mineral Contents ◽  
Total Soluble Solids ◽  
Total Titratable Acidity ◽  
Macro Mineral

Effects of enriching soymilk with pawpaw puree at different ratios (10 – 40%) were evaluated for physicochemical properties, vitamin A and C, mineral contents, and sensory attributes. The results showed increase in total soluble solids (5.5 – 8.5 oBrix), total titratable acidity (0.53 – 0.87 g/kg) and viscosity (19.9 – 26.7 cp), but decreased in pH (7.4 – 6.8). Vitamin A and C contents of the soy-pawpaw beverage increased from 12.4– 20.4 μg/100 ml and 10.9 – 25.8 mg/100 ml, respectively. All the macromineral contents of the enriched soymilk beverages increased significantly except for sodium.Enrichment of soymilk with pawpaw puree improved the sensory attributes of the drink in terms of flavour, taste, mouthfeel and overall acceptance, especially at high supplementation level (40%). Soymilk with pawpaw puree resulted in products with better vitamin A and C and macro-mineral contents than plain soymilk drink, thus, the soy-pawpaw beverage will complement consumers micro and macro-nutrient intake. Bangladesh J. Sci. Ind. Res.56(2), 105-114, 2021

scholarly journals PRODUÇÃO DO MELOEIRO EM AMBIENTE PROTEGIDO IRRIGADO COM DIFERENTES LÂMINAS DE ÁGUA

Irriga ◽  
2006 ◽  
Vol 11 (4) ◽  
pp. 500-506 ◽  
Author(s):  
Marcio Koetz ◽  
Gilberto Coelho ◽  
Jacinto De Assunção Carvalho ◽  
Rovilson José de Souza ◽  
Renato Antonio da Silva
Keyword(s):  
Cucumis Melo ◽  
Block Design ◽  
Water Levels ◽  
Soluble Solids ◽  
Plant Production ◽  
Average Weight ◽  
Irrigation Level ◽  
Cucumis Melo L ◽  
Irrigation Levels ◽  
Fruit Diameter

PRODUÇÃO DO MELOEIRO EM AMBIENTE PROTEGIDO IRRIGADO COM DIFERENTES LÂMINAS DE ÁGUA  Marcio Koetz1; Gilberto Coelho1; Jacinto de Assunção Carvalho1; Rovilson José de Souza1; Renato Antonio da Silva21Departamento de Engenharia,Universidade Federal de Lavras, Lavras,  MG, [email protected] de Agricultura,Universidade Federal de Lavras, Lavras,  MG  1 RESUMO          Com o objetivo de avaliar o efeito de lâminas de irrigação e de freqüências de adubação sobre a produtividade total, diâmetro, comprimento e a massa média de frutos de melão, foi conduzido um experimento em blocos casualizados com parcelas subdivididas sendo nas parcelas quatro lâminas de irrigação (50, 75, 100 e 125 % da evaporação do TCA) e quatro freqüências de adubação de 14/10/2003 a 29/01/2004. Os sólidos solúveis totais (SST) obtiveram melhores resultados para uma lâmina de irrigação de 75 % da ETCA. O diâmetro, comprimento e massa média do fruto, e produtividade do meloeiro, obtiveram maiores valores para a freqüência de adubação em cinco aplicações e para uma lâmina de irrigação de 125 % da ETCA, no entanto, não há diferença significativa entre as características avaliadas. UNITERMOS: irrigação, fertirrigação, melão, Cucumis melo L. var. cantaloupensis  KOETZ, M.; COELHO, G.; CARVALHO, J. de A.; SOUZA, R. J. de; SILVA, R. A. da.MELON PLANT PRODUCTION UNDER  PROTECTED IRRIGATED CONDITIONS AND DIFFERENT  WATER LEVELS  2 ABSTRACT             In order to evaluate the effect of irrigation levels and fertilization periods on the total productivity, fruit diameter, length and fruit average weight. The experiment had a  random block design with 4 irrigation levels (50, 75, 100 and 125% of the TCA evaporation) and 4 fertilization periods  from Oct. 14, 2003 to Jan. 1, 2004. The total soluble solids (SST) obtained better results for an irrigation level of 75% ETCA. The fruit diameter, length and average mass, and melon plant productivity presented higher values for fertilization periods in five applications and for an irrigation level of 125% ETCA; however, there is not significant differences among the evaluated characteristics. KEYWORDS: Irrigation, fertigation, melon, Cucumis melo L. var. cantaloupensis 

scholarly journals Nutritional Composition and Health Benefits of Various Botanical Types of Melon (Cucumis melo L.)

Plants ◽  
2021 ◽  
Vol 10 (9) ◽  
pp. 1755
Author(s):  
Shivapriya Manchali ◽  
Kotamballi N. Chidambara Murthy ◽  
Vishnuvardana ◽  
Bhimanagouda S. Patil
Keyword(s):  
Cucumis Melo ◽  
Radical Scavenging Activity ◽  
Crop Improvement ◽  
Health Benefits ◽  
Radical Scavenging ◽  
Healthy Diet ◽  
Soluble Solids ◽  
In Vitro Assays ◽  
Potential Health ◽  
Cucumis Melo L

Characterizing the diverse melon cultivars for nutrition aids in crop improvement and promoting a healthy diet. Here, we used in vitro assays to characterize the nutritional qualities and health-beneficial effects of 30 melon (Cucumis melo L.) genotypes, including 10 improved cultivars, 16 landraces, and 4 wild types collected from different parts of India. Two landraces (Sidoota and Alper Green) had the highest (12.20 and 11.25) total soluble solids (TSS) contents. The Sidoota and Pappusa landraces had high reducing sugar contents (2.84 and 2.81 mg g−1 fresh weight [FW]). The highest polyphenols contents (22.0 mg g−1 FW) were observed in the landraces Mage Kaayi-2, Budamekaayi, and Small Melon. Reflecting on the primary and secondary metabolite contents, the Mekke Kaayi and Giriyala landraces exhibited high 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity (97.6 and 91% at 100 μg mL−1). Additionally, seven of the landraces showed significant nitric oxide (NO) induction activity (>80% inhibition at 200 μg mL−1), indicating their potential health benefits, and seven showed considerable angiotensin-converting enzyme (ACE) inhibition activity (highest in Kashi Madhu), indicating their potential usefulness in reducing hypertension. Genotypes with high health beneficial compounds identified in this study can be used for breeding improved melon cultivars to promote these fruits as well as a healthy diet.

scholarly journals 272 CONTROL OF BROWN ROT OF PEACHES AND APRICOTS WITH HOT WATER AND CONTROLLED-ATMOSPHERE STORAGE

HortScience ◽  
1994 ◽  
Vol 29 (5) ◽  
pp. 469a-469
Author(s):  
Salah E. Youssef ◽  
Elizabeth J. Mitcham
Keyword(s):  
Brown Rot ◽  
Titratable Acidity ◽  
Hot Water ◽  
Soluble Solids ◽  
Monilinia Fructicola ◽  
Controlled Atmosphere ◽  
Controlled Atmosphere Storage ◽  
Atmosphere Storage ◽  
Better Than

Peaches and apricots were obtained at harvest. One-half were inoculated with the brown rot organism (Monilinia fructicola) and incubated overnight before immersion in 52C water for 2.5 and 2 minutes, respectively. Fruit were placed in storage at SC in air, 2% O2 and 15% CO2, or 17% O2 and 15% CO2 for 5 or 15 days before ripening at 20C. For peach, controlled atmosphere (CA) had no influence on decay while hot water significantly reduced decay incidence and severity. For apricot, after 15 days cold storage, both hot water and controlled atmosphere storage reduced decay incidence and severity. CA with 2% O2 and 15% CO2 controlled decay better than 17% O2 and 15% CO2. Growth and sporulation of Monilinia fructicola in air and CA was also evaluated in vitro. The combination of heat and CA controlled decay better than either treatment alone. The hot water treatment resulted in minor surface injury on peaches while apricots were not injured. Fruit were evaluated after storage for firmness, soluble solids, and titratable acidity. Accumulation of ethanol and acetaldehyde as a result of CA storage was monitored.

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