Selected quality attributes of paddy rice as affected by storage temperature history

ABSTRACT The hygienic consequences of the temperature regimes experienced by perishable product during storage, transport, and display can be assessed by a temperature function integration technique. The technique requires the collection of appropriate temperature histories from product units moving through a process and integration of the histories with respect to suitable models which describe the dependency on temperature of the growth of bacteria of concern. The distributions of the proliferation values obtained are characteristic of each process. However, when the duration of a process is highly variable for individual units passing through it the fundamental characteristics of the process may be difficult to discern from proliferation data. Then, a storage efficiency factor can be calculated from a proliferation value and the duration of each temperature history, and the distributions of those factors used to assess and compare processes. Procedures for the collection and analysis of product temperature history data from product cooling, storage, distribution, and display processes, and the use of such data for process assessment are discussed.

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Bruise Damage and Quality Changes in Impact-Bruised, Stored Tomatoes

Horticulturae ◽

10.3390/horticulturae7050113 ◽

2021 ◽

Vol 7 (5) ◽

pp. 113

Author(s):

Pankaj B. Pathare ◽

Mai Al-Dairi

Keyword(s):

Weight Loss ◽

Prediction Models ◽

Storage Temperature ◽

Color Change ◽

Quality Attributes ◽

Soluble Solids ◽

Drop Height ◽

Total Soluble Solids ◽

The Impact ◽

And Storage

This study examined three main possible effects (impact, storage temperature, and duration) that cause and extend the level of bruising and other quality attributes contributing to the deterioration of tomatoes. The impact threshold level required to cause bruising was conducted by subjecting tomato samples to a steel ball with a known mass from different drop heights (20, 40, and 60 cm). The samples were then divided and stored at 10 and 22 °C for 10 days for the further analysis of bruise area and any physiological, chemical, and nutritional changes at two day intervals. Six prediction models were constructed for the bruised area and other quality attribute changes of the tomato. Storage time, bruise area, weight loss, redness, total color change, color index, total soluble solids, and pigments content (lycopene and carotenoids) showed a significant (p < 0.05) increase with the increase of drop height (impact level) and storage temperature. After 10 days of storage, high drop impact and storage at 22 °C generated a higher reduction in firmness, lightness, yellowness, and hue° (color purity). Additionally, regression model findings showed the significant effect of storage duration, storage temperature, and drop height on the measured variables (bruise area, weight loss, firmness, redness, total soluble solids, and lycopene) at a 5% probability level with a determination coefficient (R2) ranging from 0.76 to 0.95. Bruising and other quality attributes could be reduced by reducing the temperature during storage. This study can help tomato transporters, handlers, and suppliers to understand the mechanism of bruising occurrence and how to reduce it.

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Effect of Storage Temperature on Storage Efficacy, Germination and Physical Characters of Some Paddy Rice Cultivars during Different Storage Periods

Journal of the Faculty of Agriculture, Kyushu University ◽

10.5109/2232279 ◽

2019 ◽

Vol 64 (1) ◽

pp. 61-69 ◽

Cited By ~ 2

Author(s):

Mohamed Youssef KATTA ◽

Mohamed Mohamed KAMARA ◽

Saad Mohamed ABD EL–ATY ◽

Hassan Waleed ELGAMAL ◽

Mohamed Ramadan SOLEIMAN ◽

...

Keyword(s):

Storage Temperature ◽

Paddy Rice ◽

Rice Cultivars

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Influence of the glass transition and storage temperature of frozen peas on the loss of quality attributes

International Journal of Food Science & Technology ◽

10.1111/j.1365-2621.2005.01096.x ◽

2006 ◽

Vol 41 (5) ◽

pp. 507-512 ◽

Cited By ~ 14

Author(s):

Miang Lim ◽

Hongbing Wu ◽

Michael Breckell ◽

John Birch

Keyword(s):

Glass Transition ◽

Storage Temperature ◽

Quality Attributes ◽

And Storage

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Effect of Storage Temperature on Fruit Quality Attributes and Storage Disorders in Cold-stored ‘Sangjudungsi’ Persimmon Fruit

Protected horticulture and Plant Factory ◽

10.12791/ksbec.2016.25.4.262 ◽

2016 ◽

Vol 25 (4) ◽

pp. 262-269

Author(s):

Jingi Yoo ◽

진기 유 ◽

In-Kyu Kang ◽

인규 강 ◽

...

Keyword(s):

Fruit Quality ◽

Storage Temperature ◽

Quality Attributes ◽

Persimmon Fruit ◽

And Storage ◽

Storage Disorders

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Storage Temperature and 1-Methylcyclopropene Treatment Affect Storage Disorders and Physiological Attributes of ‘Royal Gala’ Apples

HortScience ◽

10.21273/hortsci.51.1.84 ◽

2016 ◽

Vol 51 (1) ◽

pp. 84-93 ◽

Cited By ~ 8

Author(s):

Jinwook Lee ◽

James P. Mattheis ◽

David R. Rudell

Keyword(s):

Fruit Quality ◽

Cold Storage ◽

Malus Domestica ◽

Storage Temperature ◽

Quality Attributes ◽

Ethylene Concentration ◽

Physiological Disorders ◽

Flesh Browning ◽

Treatment Concentration ◽

Storage Disorders

‘Royal Gala’ apples [Malus domestica (Borkh.) Mansf.]can develop postharvest disorders such as flesh browning, senescent breakdown, peeling, cracking, or shriveling during and after cold storage. The objective of this study was to examine the effects of storage temperature and a range (0, 0.25, 0.5, or 1 µL·L−1) of 1-methylcyclopropene (1-MCP) concentrations on fruit quality attributes and incidence and severity of physiological disorders during and after cold storage. Storage temperature differentially affected internal ethylene concentration (IEC), fruit circumference, and cortex color. 1-MCP treatment resulted in significant effects on fruit quality attributes and severity of physiological disorders, regardless of storage temperature. Incidence and severity of diffuse flesh breakdown (DFB), shriveling, cracking, and peeling were highest in control fruit stored but radial stem-end flesh breakdown (RSFB) only primarily in 1-MCP-treated fruit. Incidence of RSFB was highest following storage at 0.5 °C compared with 3 °C. 1-MCP treatment had the most influence on disorder incidence/severity or quality attributes, while treatment concentration of 1-MCP was not significant. Overall, the results indicate that 1-MCP treatment can reduce the incidence of ‘Royal Gala’ DFB but may enhance sensitivity to RSFB, when fruit are stored at 0.5 or 3 °C. Incidence of DFB and RSFB are influenced differentially by storage temperature or by 1-MCP treatment, respectively, indicating they may be different disorders.

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Changes in Selected Quality Attributes of Greenhouse Tomato Fruit as Affected by Pre- and Postharvest Environmental Conditions in Year-round Production

HortScience ◽

10.21273/hortsci.47.12.1698 ◽

2012 ◽

Vol 47 (12) ◽

pp. 1698-1704 ◽

Cited By ~ 8

Author(s):

Chieri Kubota ◽

Mark Kroggel ◽

Mohammad Torabi ◽

Katherine A. Dietrich ◽

Hyun-Jin Kim ◽

...

Keyword(s):

Nutrient Solution ◽

Fruit Quality ◽

Storage Temperature ◽

Tomato Fruit ◽

Quality Attributes ◽

Influential Factors ◽

Influential Factor ◽

Soluble Solids ◽

Postharvest Quality ◽

Postharvest Storage

‘Durinta’ tomatoes were grown hydroponically using rockwool substrate in greenhouses to assess the seasonal and postharvest changes of selected quality attributes including lycopene and total soluble solids (TSS, % Brix) concentrations in fruit when grown under varied electrical conductivity (EC) in the nutrient solution. Two levels of EC examined in this study were 2.4 and 4.8 dS·m−1 for standard low EC and high EC treatments, respectively. All fruits at light-red and red ripeness stages were harvested and weighed every week, and nine fruits visually representing the median group of red fruits were selected from each EC treatment and subject to measurements of lycopene and TSS concentrations. Of 53 harvest weeks (Dec. 2005 to Dec. 2006), 45 weeks were subject to fruit quality analyses at harvest and 3 weeks were subject to postharvest quality analyses. Lycopene concentration and TSS showed seasonal differences with larger variation in lycopene, but the high EC treatment induced an overall average of 18% greater lycopene concentration and a 20% greater TSS. The regression analyses indicated that efflux solution EC (EEC) was the most influential factor for both lycopene and TSS concentrations, but secondary influential factors were greenhouse temperature for lycopene and daily light integral for TSS. Postharvest storage test showed that selected fruit quality attributes (lycopene, TSS, ascorbic acid, and total phenolics) changed minimally or not at all for 10 days when stored at 12 °C, a widely recommended tomato postharvest storage temperature. Overall, we consider that producing lycopene-rich tomato by controlling EC of nutrient solution was feasible during year-round greenhouse production using a high-wire rockwool culture system.

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