scholarly journals 387 Carbon Dioxide Enrichment in Mamoncillo Fruit (Melicoccus bijugatus Jacq.) during Storage

HortScience ◽  
1999 ◽  
Vol 34 (3) ◽  
pp. 510E-510
Author(s):  
Juan E Manzano-Mèndez ◽  
Damaso Bautista
Keyword(s):  
Citric Acid ◽  
Storage Time ◽  
Storage Temperature ◽  
Solid Content ◽  
Soluble Solid Content ◽  
Carbon Dioxide Enrichment ◽  
Total Sugars ◽  
Ph Values ◽  
Soluble Solid ◽  
And Storage

Mamoncillo fruit, which are very perishable, were harvested at mature ripening stage and stored at gas atmospheres containing of 5.1% CO2, 5.6 % oxygen and 89.3% nitrogen, during 17 days at 10 and 15 ± 2 °C. Characteristics studied were the percent soluble solid content, pH, tritatable acidity (expressed as citric acid), reducing sugars, and total sugars. The SST content showed values ranged between 20.37% to 22.30%, which were high values, but did not show significant differences in the treatments. The pH values were between 3.4 and 3.8 and were highly significant in the interaction between temperature and storage time. The tritatable acidity reported values from 0.99 to 2.24 (as percent citric acid), which had similar behavior in the fruit treated or not with CO2. Reducing sugar values were between 7.79 and 17.99 g•100 g-1 (in base to fresh weight), with highest values at higher storage temperature without CO2 atmosphere. Some times these fruit could be sweeter, such as in this case where the total sugar reached the highest values from 12.92 to 20.64 g•100 g-1, resulting in higher value fruit stored during 3 weeks with CO2 treatment at 15 ± 2 °C. Fruit kept good conditions during 3 weeks stored at 15 ± 2 °C.

scholarly journals Endogenous pH, Titratable Acidity and Total Soluble Solid Content of Mouthwashes Available in the Brazilian Market

2010 ◽  
Vol 04 (02) ◽  
pp. 156-159 ◽  
Author(s):  
Alessandro Leite Cavalcanti ◽  
Ianny Alves Ramos ◽  
Rafaela Bastos Leite ◽  
Mariana da Costa Oliveira ◽  
Karynna de Melo Menezes ◽  
...  
Keyword(s):  
Titratable Acidity ◽  
Critical Value ◽  
Solid Content ◽  
Total Soluble Solid ◽  
Soluble Solid Content ◽  
Dental Tissues ◽  
Ph Values ◽  
Soluble Solid ◽  
Abbe Refractometer

Objectives: To evaluate in vitro the endogenous pH, titratable acidity and total soluble solid content (TSSC) of mouthwashes available in the Brazilian market.Methods: The study sample was composed of 10 commercial brands of mouthwashes based on different active ingredients: Cepacol®, Clinerize®, Equate®, Listerine Cool Citrus®, Oral-B®, Periogard ®, Peroxyl®, Plax Overnight®, Prevident 220® and Sanifill®. The experiments were performed in triplicate. The endogenous pH was evaluated by potentiometry, titratable acidity was evaluated by the addition of 0.1N KOH increments to the mouthwashes, and TSSC readings were performed by Brix refractometry using the Abbé refractometer.Results: pH values ranged from 3.56 (Peroxyl®) to 7.43 (Cepacol®) and three mouthwashes presented pHs below 5.5. The titratable acidity values ranged from 0.007 (Periograd®) to 0.530 (Prevident ®). Oral B® and Clinerize® presented the lowest (4.7%) and the highest (23.70%) TSSC, respectively.Conclusions: Some of the mouthwashes evaluated in this study presented low endogenous pH, even below the critical value for enamel dissolution (pH<5.5), high titratable acidity and high TSSC, and may be potentially erosive to the dental tissues if not properly used. (Eur J Dent 2010;4:156-159)

scholarly journals Influence of Different Levels of Sulphur and Potassium and their Interactions on Different Quality and Storage Parameters of Potato

2021 ◽  
pp. 38-46
Author(s):  
Muzamil A. Rather ◽  
M. A. Chattoo ◽  
T. A. Bhat ◽  
F. Mushtaq ◽  
M. Rashid ◽  
...  
Keyword(s):  
Weight Loss ◽  
Crude Protein ◽  
Dry Matter ◽  
Matter Content ◽  
Solid Content ◽  
Soluble Solid Content ◽  
Dry Matter Content ◽  
Crude Protein Content ◽  
Soluble Solid ◽  
And Storage

Quality and storage attributes are major concern for potato cultivators as well as processors. Therefore an investigation was carried out to study influence of different levels of sulphur and potassium on different quality and storage parameters of potato. The experiment was laid out in Randomized Complete Block Design with three replications of two factors with four levels of each factor. The two factors were S (sulphur) and K (potassium) with four levels as, S0 (control or no sulphur), S1 (20 kg S ha-1), S2 (40 kg S ha-1) and S3 (60 kg S ha-1) where as potassium levels were, K0 (control or no potassium), K1 (100 kg K ha-1), K2 (125 kg K ha-1) and K3 (150 kg K ha-1). Maximum value (1.48 g cc-1) for specific gravity, Soluble solid content (6.31 0Brix), vitamin C (16.58 mg 100 g-1), crude protein content(1.93%) and Dry matter content (23.09%) in tubers were recorded with S3 (60 kg ha-1) , besides significantly lower values of physiological weight loss (17.50%), sprouting (16.93%) and rotting (15.04%) were also recorded with S3 (60 kg ha-1) level followed by S2 (40 kg S ha-1). Significantly maximum values of quality traits like specific gravity (1.79 g cc-1), Soluble solid content (6.92 0Brix), vitamin C (21.62 mg 100 g-1), crude protein content (2.35%), Dry matter content (25.49%) in tubers were recorded with K3 (150 kg K ha-1), further significantly lower values of physiological weight loss (13.89%), sprouting (11.47 %) and rotting loss (9.92%) were recorded with S3 (150 kg K ha-1). Conjugation of 150 kg K ha-1 K+ 60 kg S ha-1 recorded maximum values of quality traits specific gravity (1.80), soluble solid content (7.63 0Brix), vitamin C (22.10 mg 100 g-1), crude protein content (2.49%) and dry matter content (25.92%), however S content of 0.367% was recorded with K3S3(150 kg K + 60 kg S ha-1), besides significantly lower values of physiological weight loss (13.47%), sprouting (10.44%) and rotting loss (5.43%) followed by S3K3 treatment.

scholarly journals Effect of hydrogen sulfide(H2S) fumigation on quality of passionfruit (Passiflora edulis sims)

2019 ◽  
Vol 131 ◽  
pp. 01080
Author(s):  
Yun Fen Liu ◽  
Zhen Hong Guo ◽  
Mu Bo Song ◽  
Yuan Li Liang ◽  
Zhong Tian Pan ◽  
...  
Keyword(s):  
Cold Storage ◽  
Storage Time ◽  
Loss Rate ◽  
Titratable Acidity ◽  
Solid Content ◽  
Passion Fruit ◽  
Soluble Solid Content ◽  
Passiflora Edulis ◽  
Soluble Solid

In order to investgate the effects of H2S on the quality of cold-storage passion fruit, fresh harvested fruits were treated with different concentrations of H2S(0 mmol/L, 1 mmol/L, 2 mmol/L, 3 mmol/L), packaged with BOPP plastic wrap and placed into 5±1°C for 35 days. Samples were randomly selected and at 7-days interval during cold storage, compared the preservation effect of different concentrations of H2S. The results indicated that the fruits with 2 mmol/LH2S treatment have better chroma and lower weight loss rate, and soluble solid content, titratable acidity, vitamin C, sugar were preserved at higher level than that of control fruits during storage time. These results showed that 2 mmol/LH2S treatment could maintain the quality of passion fruit during cold storage.

scholarly journals 931 PB 512 COMPARISON OF THREE CULTIVARS AND TWO HYBRIDS OF ONIONS (TEXAS GRANEX 502 PRR, TEXAS GRANEX 502, HOUSTON, HYBRID GRANEX 33, AND HYBRID GRANEX 429) ON DIFFERENT STORAGE TEMPERATURE

HortScience ◽  
1994 ◽  
Vol 29 (5) ◽  
pp. 567e-567
Author(s):  
Juan E. Manzano ◽  
Judith Zambrano ◽  
Douglas Delgado
Keyword(s):  
Weight Loss ◽  
Room Temperature ◽  
Storage Temperature ◽  
Titratable Acidity ◽  
Solid Content ◽  
Soluble Solid Content ◽  
C Storage ◽  
Soluble Solid ◽  
Ph Increase

Aproximately one Kg of Onions bulbs were put in a plastic net and stored at 5°C, 12°C and room temperature (25-3B)°C, with three replications. Analysis of samples were made weekly to detect weight loss during storage for thirteen weeks. Determination of soluble solid content, pH, titratable acidity, reducing sugars were made at weeks two and twelve. Onions stored at room temperature were completely rot, in the week fourteen. Weight loss was lower at 5°C storage In the cultivar Texas Granex 502. In this cultivar soluble solid and pH increase during storage to low temperature while titratable acidity and reducing sugar decreased. The cultivar Texas Granex 502 was the best.

Role of Phospholipase D Inhibitor in Regulating Expression of Senescencerelated Phospholipase D gene in Postharvest Longan Fruit

2019 ◽  
Vol 14 (7) ◽  
pp. 649-657 ◽  
Author(s):  
Li Li ◽  
Jiemin Li ◽  
Jian Sun ◽  
Ping Yi ◽  
Changbao Li ◽  
...  
Keyword(s):  
Phospholipase D ◽  
Ascorbic Acid Content ◽  
Titratable Acidity ◽  
Significant Inhibition ◽  
Solid Content ◽  
Total Soluble Solid ◽  
Total Phenolic ◽  
Soluble Solid Content ◽  
Soluble Solid ◽  
Pericarp Browning

Background: Phospholipase D (PLD)is closely related to browning and senescence of postharvest longan fruit. Objective: This study investigated the effects of 2-butanol (a PLD inhibitor) on the expression and regulation of PLD during storage of longan fruit at a low temperature. Methods: Senescence-related quality indices showed that the 2-butanol-treated fruit presented lower pericarp browning index, pulp breakdown index and total soluble solid value than the untreated fruit. Results: The fruit treated by 60 µL/L 2-butanol exhibited the strongest inhibition on senescence, which significantly delayed changes in weight, titratable acidity content, total soluble solid content and ascorbic acid content. This treatment maintained a high level of total phenolic content and caused significant inhibition on pericarp browning and pulp breakdown. Through ELISA method, 60 µL/L 2-butanol treatment also reduced PLD activity. Real-time RT-PCR (RT-qPCR) results showed that PLD mRNA expression level was inhibited by 60 µL/L 2-butanol within 15 days. Western-blotting results further confirmed the differential expression of PLD during storage, and a relatively higher expression for PLD protein was found in control compared to the 2-butanoltreated fruit during 15-d storage. Conclusion: These results provided a scientific basis and reference to further investigating postharvest longan quality maintenance by regulating the PLD gene expression.

scholarly journals Effect of Cross-Linked Alginate/Oil Nanoemulsion Coating on Cracking and Quality Parameters of Sweet Cherries

Foods ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 449
Author(s):  
Camilo Gutiérrez-Jara ◽  
Cristina Bilbao-Sainz ◽  
Tara McHugh ◽  
Bor-Sen Chiou ◽  
Tina Williams ◽  
...  
Keyword(s):  
Titratable Acidity ◽  
Quality Parameters ◽  
Solid Content ◽  
Postharvest Quality ◽  
Soluble Solid Content ◽  
Nutritional Values ◽  
Quality Properties ◽  
Vapor Transfer ◽  
Sweet Cherries ◽  
Soluble Solid

The cracking of sweet cherries causes significant crop losses. Sweet cherries (cv. Bing) were coated by electro-spraying with an edible nanoemulsion (NE) of alginate and soybean oil with or without a CaCl2 cross-linker to reduce cracking. Coated sweet cherries were stored at 4 °C for 28 d. The barrier and fruit quality properties and nutritional values of the coated cherries were evaluated and compared with those of uncoated sweet cherries. Sweet cherries coated with NE + CaCl2 increased cracking tolerance by 53% and increased firmness. However, coated sweet cherries exhibited a 10% increase in water loss after 28 d due to decreased resistance to water vapor transfer. Coated sweet cherries showed a higher soluble solid content, titratable acidity, antioxidant capacity, and total soluble phenolic content compared with uncoated sweet cherries. Therefore, the use of the NE + CaCl2 coating on sweet cherries can help reduce cracking and maintain their postharvest quality.

Effect of maturity, storage temperature, and storage time on greening of potato tubers

1967 ◽  
Vol 44 (2) ◽  
pp. 56-58 ◽  
Author(s):  
R. W. Buck ◽  
R. V. Akeley
Keyword(s):  
Storage Time ◽  
Storage Temperature ◽  
Potato Tubers ◽  
And Storage
Sign in / Sign up

Export Citation Format

Share Document