Effects of Different Post-harvest Treatments on Physico-Chemical Attributes and Shelf Life of Tomato Fruits

2017 ◽  
Vol 5 (1) ◽  
pp. 63-66
Author(s):  
Akangtula Jamir ◽  
◽  
Chhungpuii Khawlhring
Keyword(s):  
Weight Loss ◽  
Ambient Temperature ◽  
Shelf Life ◽  
Reducing Sugars ◽  
Titratable Acidity ◽  
Quality Parameters ◽  
Tomato Fruits ◽  
Beneficial Effects ◽  
Physico Chemical ◽  
Chemical Attributes

An experiment was conducted to study the effect of different local treatments with and without CaCl2 on the quality and shelf life of tomato fruits. Mature green tomato fruits were evaluated, and data were taken on weight loss, shelf life, titratable acidity, TSS, reducing sugars, total sugars and vitamin C contents during storage at ambient temperature (20±5°C). The fruits were then evaluated for changes in quality parameters within the different stages of ripening. Results showed that dipping tomato fruits in 8% CaCl2 for ten minutes does not have beneficial effects on shelf life and quality retention of tomato fruits. Wrapping tomato fruits with polythene resulted in least weight loss, maximum contents of TSS, titratable acidity, total and reducing sugars as well as ascorbic acid and also maximum shelf life of tomato fruits among all other treatments, and thus can be used effectively for storing green mature tomato fruits for upto 25 days in ambient temperature.

scholarly journals Effect of Salicylic Acid on Physico-chemical Attributes and Shelf Life of Tomato Fruits at Refrigerated Storage

2016 ◽  
Vol 7 (6) ◽  
pp. 1272-1278
Author(s):  
Debashis Mandal ◽  
◽  
Lalhlimpuii Pautu ◽  
Tridip Kumar Hazarika ◽  
Bhagwati Prasad Nautiyal ◽  
...  
Keyword(s):  
Salicylic Acid ◽  
Shelf Life ◽  
Refrigerated Storage ◽  
Tomato Fruits ◽  
Physico Chemical ◽  
Chemical Attributes

Characterization and storage of Eugenia klotzschiana O. Berg fruits

2021 ◽  
Vol 51 ◽  
Author(s):  
Alex Guimarães Sanches ◽  
Vanessa Maria Dantas Pedrosa ◽  
Maryelle Barros da Silva ◽  
Thiago Feliph Silva Fernandes ◽  
Gustavo Henrique de Almeida Teixeira
Keyword(s):  
Weight Loss ◽  
Vitamin C ◽  
Ambient Temperature ◽  
Shelf Life ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Fresh Weight ◽  
Maturity Stages ◽  
Physical And Chemical ◽  
And Storage

ABSTRACT Pera-do-cerrado (Eugenia klotzschiana O. Berg) has a good appearance and adequate post-harvest shelf life. However, little information is available regarding its maturity stages. This study aimed at characterizing E. klotzschiana fruits harvested at three maturity stages (immature, physiological mature and ripe), in addition to evaluating the physical and chemical changes during storage at ambient temperature (24 ± 2 ºC and 75 % ± 5 % of RH) for up to 5 days. The ripe fruits had a higher fresh mass (98.03 g), width (5.61 cm) and ratio (5.37), and lower titratable acidity (1.27 %). In contrast, immature fruits showed a greener peel (101.32 ºh) and higher vitamin C content (11.23 mg 100 g-1). There was an increase in the fresh weight loss (3.05 %) and a decrease in the peel luminosity (67.09-57.12 L*) and vitamin C content (8.11-5.04 mg 100 g-1). However, the soluble solids (SS) values did not change during the 5 days of storage. A reduction in the titratable acidity (TA; 1.29-1.06 %) was also observed, which resulted in a higher ratio (3.81-5.84). In conclusion, E. klotzschiana fruits should be harvested ripe, as they present larger dimensions, better color, higher SS/TA (flavor) and are less acidic.

scholarly journals Effect of different storage conditions on physico-chemical composition and shelf life of persimmon fruit

2019 ◽  
Vol 2 (1) ◽  
Keyword(s):  
Weight Loss ◽  
Chemical Composition ◽  
Shelf Life ◽  
Minimum Weight ◽  
Titratable Acidity ◽  
Bioactive Molecules ◽  
Soluble Solids ◽  
Total Period ◽  
Persimmon Fruit ◽  
Physico Chemical

Persimmon is naturally divulged with bioactive molecules including tannins etc. and its utilization may be helpful to reducing the diabetes mellitus. Therefore this research study was carried out to enhance the shelf life of persimmon fruit at refrigeration and ambient temperature (Temperature 20-23oC Relative humidity 60-63%) during storage. The quality attribute such as weight loss, TSS (°Brix), pH, titrable acidity total tannin (mg/100g) and ascorbic acid were studied at an interval of 3 days for a total period of 12 days. However, the treatment of T5 (sun dried + low density polyethylene) was superior to all other treatments in retention of vitamin C, total soluble solids, titratable acidity, total tannin and pH with minimum weight loss compared to control whereas the treatment T6 (oven dried + HDPE) was found better to all other treatments during storage. The treated persimmon fruit have increased storage life as compared to control. Present study was proved helpful to evaluate the effect of storage condition on physico-chemical composition and increase the postharvest life of treated fruits during storage.

scholarly journals Effect of ultrasound treatment on the quality and contents of polyphenols, lycopene and rutin in tomato fruits

2020 ◽  
Vol 38 (No. 1) ◽  
pp. 20-27
Author(s):  
Erik Gustavo Tovar-Pérez ◽  
Selene Aguilera-Aguirre ◽  
Ulises López-García ◽  
Maribel Valdez-Morales ◽  
Alma Karina Ibarra-Zurita ◽  
...  
Keyword(s):  
Weight Loss ◽  
Secondary Metabolites ◽  
Titratable Acidity ◽  
Quality Parameters ◽  
Soluble Solids ◽  
Tomato Fruits ◽  
Evaluation Period ◽  
Nutrient Contents ◽  
The Us

The quality of tomato (Solanum esculentum L.) fruits is associated with their sensory characteristics and nutrient contents, among which are some secondary metabolites with biological activity. The aim of this study was to assess the effect of ultrasound (US) treatment on the quality and contents of polyphenols, lycopene and rutin in tomatoes after harvest. The application of US under controlled conditions of time and sonication amplitude (SA) induced a significant increase in polyphenol, lycopene and rutin contents in both the pulp and the skin of tomatoes at the beginning and end of the post-harvest evaluation period (0 and 6 days), standing out the 10 min 60% SA and 20 min 20% SA treatments. Additionally, with these treatments, no US effect was observed on the quality parameters (total soluble solids, titratable acidity, pH, firmness, and physiological weight loss). These results reveal that the US application to tomatoes is an attractive technology to increase the content of secondary metabolites in the fruit without affecting its quality.

scholarly journals THE INFLUENCE OF THE WAXY WHEAT FLOUR ON THE CAKE`S STALING

2018 ◽  
Vol 6 (4) ◽  
pp. 359-362
Author(s):  
Kateryna Iorgachova ◽  
Olga Makarova ◽  
Kateryna Khvostenko
Keyword(s):  
Shelf Life ◽  
Wheat Flour ◽  
Starch Content ◽  
Bound Water ◽  
Storage Period ◽  
Positive Influence ◽  
Quality Parameters ◽  
Moisture Loss ◽  
Waxy Wheat ◽  
Physico Chemical

Nowadays the use of waxy wheat in bread and pastry technologies, is gaining interest in view of extending the shelf-life of flour products, avoiding the use of additives. The obtained results shows the expediency of using waxy wheat flour, starch of which does not contain amylose, for the stabilization of the cake`s quality during its storage. The influence of the mass fraction of non-amylose wheat flour on the physico-chemical and sensory characteristics of finished products were studied. Quality parameters like moisture content, rheological characteristics of the crumb, microbial and sensory analysis of developed products were evaluated during 7 days of storage period. It is found that replacement of bakery wheat flour with traditional starch content for the waxy wheat flour has the positive influence on the cake`s staling process. These samples were characterized with lower decrease of moisture loss, less reduction of the amount of bound water in cake`s crumb and higher organoleptic quality at the end of the shelf-life without adding of synthetic improvers.

scholarly journals Potential of Postharvest Coatings to Maintain Freshness of Red-Fleshed Pitaya (Hylocereus costaricensis)

Agriculture ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 892
Author(s):  
Nur Azlin Razali ◽  
Steven A. Sargent ◽  
Charles A. Sims ◽  
Jeffrey K. Brecht ◽  
Adrian D. Berry ◽  
...  
Keyword(s):  
Weight Loss ◽  
Tap Water ◽  
Titratable Acidity ◽  
Quality Parameters ◽  
The Other ◽  
Soluble Solids ◽  
Postharvest Quality ◽  
Quality Factors ◽  
Climacteric Fruit

Pitaya is a non-climacteric fruit that has white or red flesh with numerous small, black seeds. It has a high moisture content; however, water loss during handling and storage negatively affects the fresh weight, firmness and appearance of the fruit, decreasing market value. Application of compatible postharvest coatings has been shown to benefit postharvest quality of many crops. The objective of this study was to evaluate the effect of two commercial coatings on weight loss and quality of pitaya during storage. Pitaya fruit were commercially harvested and sorted for uniformity of size and freedom from defects. Fruit were briefly immersed in either a vegetable oil-based coating (VOC; Sta-Fresh® 2981) or a carnauba-based coating (CC; Endura-Fresh™ 6100) according to manufacturer’s recommendations. Fruit immersed in tap water served as a control. Fruit were fan-dried at room temperature for 20 min, then stored at 7 °C with 85% relative humidity (RH) and evaluated for selected physical quality parameters each 5 days during 20 days. After each evaluation, fruit were peeled and frozen for later analysis of soluble solids content (SSC), total titratable acidity (TTA); on day 15 fresh samples were evaluated by an untrained consumer sensory panel. CC prevented exocarp shriveling for 15 days of storage, compared to uncoated pitaya (16.3% area affected); shriveling in VOC was intermediate and not significantly different from the other treatments. Mesocarp firmness remained constant throughout 15 days of storage regardless of treatment. Fruit exocarp h* angle increased slightly by day 20, becoming slightly less red, and there were no negative treatment effects for the other quality factors measured: SSC (11.33%), TTA (0.25%), weight loss (5.5%) or sensory evaluations (appearance, flavor, texture, firmness, and juiciness). After 20 days storage, appearance for fruit from all treatments was rated unacceptable due to development of anthracnose lesions. It was concluded that both CC and VOC maintained quality of pitaya for 15 days at 7 °C and 85% RH by delaying exocarp shriveling.

scholarly journals Application of modified atmosphere packaging using silicone membrane system for shelf life extension of pomegranate (Punica granatum L.) and its effect on physico-chemical properties

2019 ◽  
Vol 3 (3) ◽  
pp. 145-155
Author(s):  
Shubhangi Srivastava ◽  
Prashant Said
Keyword(s):  
Shelf Life ◽  
Modified Atmosphere Packaging ◽  
Chemical Properties ◽  
Membrane System ◽  
Quality Parameters ◽  
Soluble Solids ◽  
Life Extension ◽  
Modified Atmosphere ◽  
Silicone Membrane ◽  
Physico Chemical

Abstract Objectives The study was conducted to prolong the shelf life of freshly harvested pomegranate fruits and to find out its physiochemical properties during storage. Materials and Methods Pomegranate fruits of variety ‘Bhagawa’ were stored in 200, 300 gauge high-density polyethylene (HDPE) package, and silicone membrane modified atmospheric storage system at ambient conditions and 10°C. Gas composition inside the package, texture, color, and overall quality parameters were evaluated at these two storage temperatures. The physico-chemical properties such as total soluble solids, titratable acidity, ascorbic acid content, total, reducing, and non-reducing sugars, and physiological loss in weight (PLW) were also determined. Results In ambient storage, the shelf life of pomegranate fruit was 10 days, whereas in modified atmosphere packaging (200 gauge HDPE, 300 gauge HDPE, and silicone membrane system), the shelf life of pomegranate fruits was extended up to 60, 60, 25 days at ambient and 96, 96, 65 days at 10°C temperature, respectively. Conclusions Among the 200, 300 gauge HDPE package, and silicone membrane system treatments T1, T5, and T8, respectively, were found better with respect to all the sensory and quality parameters studied.

Post harvest behavior of tomato as influenced by nitrogen and potassium levels

2019 ◽  
Vol 4 (02) ◽  
pp. 140-147
Author(s):  
S. Paudel ◽  
P. Pantha
Keyword(s):  
Weight Loss ◽  
Lycopersicon Esculentum ◽  
Vitamin C ◽  
Shelf Life ◽  
Block Design ◽  
Ambient Condition ◽  
Tomato Fruits ◽  
Color Development ◽  
Randomized Complete Block Design ◽  
Four Levels

Tomato (Lycopersicon esculentum) is highly perishable and has potential for processing industries in bumper producing seasons in Nepal. The study on judicious use of nitrogen and potassium levels was aimed to explore the quality attributes along with the shelf life of tomato fruits. Three levels of nitrogen comprising 0 kg/ha (N0), 100 kg/ha (N100), 200 kg/ha (N200) and four levels of potassium 0 K2O kg/ha (K0), 80 K2O kg/ha (K80), 160 K2O kg/ha (K160), 240 K2O kg /ha (K240) were used as treatments in randomized complete block design with three replications at Chitwan (Inner Terai) Nepal. Tomatoes at breaker stage were harvested from the field and 10 fruits from each treatment per replication were kept for physiological weight loss, color rating and shelf life in ambient condition (17.5±3 0C and 80.5±6.5 % RH). Fruit quality with respect to physicochemical properties like firmness, TSS, TA, pH and Vitamin C was assessed at the end of shelf life. Higher potassium levels hasten color development and increased TSS, firmness and vitamin C content. Physiological weight loss was greatly reduced and extended shelf life was achieved with 100 kg N/ha and 240 kg K2O/ha.

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 Characterization of pasteurized milk spoilage by electronic nose in relation to its selected quality parameters

2021 ◽  
Vol 10 (2) ◽  
pp. 383-397
Author(s):  
Saleem Ehsan ◽  
Zahir Al-Attabi ◽  
Nasser Al-Habsi ◽  
Michel R. G. Claereboudt ◽  
Mohammad Shafiur Rahman
Keyword(s):  
Shelf Life ◽  
Electronic Nose ◽  
Principal Component ◽  
Titratable Acidity ◽  
Bacterial Count ◽  
Quality Parameters ◽  
Accurate Estimation ◽  
Total Bacterial Count ◽  
Microbial Count ◽  
Linear Discriminant

Pasteurized fresh milk requires an accurate estimation of shelf life under various conditions to minimize the risk of spoilage and product losses. Milk samples were stored for 56 h in an oven at 25°C and for 15 days in a refrigerator at 4°C. Samples were analyzed using an electronic nose (e-nose), total bacterial count, titratable acidity and pH to determine the quality of milk. Principal Component Analysis (PCA) and Linear Discriminant Analysis (LDA) were used to analyze e-nose data of milk stored at 25°C, and 4°C. A clear shift in quality was identified by the e-nose, which also appeared in the total bacterial count after 24 h and 12 days for storage at 25 and 4°C, respectively. On the other hand, titratable acidity exceeded the normal limits of 0.14 % - 0.21 % after 24 h for storage at 25°C (0.247 ± 0.006 %) and after 15 days for storage at 4°C (0.25 ± 0.01 %). If pH was a good indicator of quality for samples stored at 25°C, it showed no clear trends for samples stored at 4°C. Based on the microbial count data and e-nose output, the milk had a shelf life of 0.3 day (i.e. 8 h) when stored at 25°C. Shelf life was extended to 9 days when stored at 4°C.

Sign in / Sign up

Export Citation Format

Share Document