scholarly journals Development of spiced squash (appetizer) from wild prickly pear (Opuntia dillenii Haw.) and its quality evaluation during storage

2019 ◽  
Vol 11 (2) ◽  
pp. 315-320
Author(s):  
Monika Chauhan ◽  
N S Thakur ◽  
Abhimanyu Thakur

Wild prickly pear (Opuntia dillenii Haw.) is one of the wild fruit with great importance because of its high antioxidants, colour pigments and other quality parameters besides its medicinal properties. In India, there are only a limited number of reports pertaining to utilization of this fruit which further lack the development of value added novel products. So, the present studies were carried out for the development of spiced squash or appetizer from wild prickly pear fruit and its quality evaluation during storage. Different combinations of fruit juice (25, 30, 35 and 40 %) and sugar syrup (40 and 45 °B) were tried to standardize a proper combination for appetizer. The appetizer prepared by using the best recipe with 35 % juice, 45 °B TSS (Total soluble solids) and 1.20 % acidity was packed in two packaging materials viz. glass and PET (Polyethylene terephthalate) bottles which were further stored for six months under ambient and refrigerated temperature conditions. Appetizer packed in glass as well as in PET packaging material can be stored successfully for a period of six months under both the temperature conditions. However, various quality parameters of appetizer were retained higher in glass bottles stored under refrigerated storage conditions.

Author(s):  
Kanchan Bhatt ◽  
N. S. Thakur ◽  
Hamid . ◽  
Abhimanyu Thakur ◽  
Chetna Sharma

Jamun (Syzygium cumini L.) is a wild fruit with major importance due to its antioxidant activity, anthocyanins content and exotic taste besides high medicinal value. This fruit is known for its antidiabetic properties as its seeds contain glucoside “Jamboline”. Due to its perishable nature and neutraceutical importance present studies have been conducted for the preparation of syrup. Various TSS (65 and 70 °B) and juice (25, 30, 35 and 40%) ratios have been attempted to optimize proper syrup combination. The two packaging materials i.e. glass and PET (Polyethylene terephthalate) bottles were used to pack jamun syrup prepared by the best selected combination and stored for 6 months under ambient (18-22°C) and refrigerated temperature conditions (4–7°C). Based on organoleptic and some physico-chemical characteristics, syrup prepared with 35% jamun juice, 65°B TSS and 1.50% acid was considered best among 8 different treatment combinations of juice and TSS. Jamun syrup could be stored safely for a duration of six months under both the ambient and refrigerated conditions without much difference in various quality parameters. Nevertheless, both PET and glass bottles have been considered appropriate as packaging material, with reasonably fewer changes taking place in glass bottles kept in refrigerated conditions.


Agriculture ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 545
Author(s):  
Grzegorz P. Łysiak ◽  
Krzysztof Rutkowski ◽  
Dorota Walkowiak-Tomczak

Late pear cultivars, such as ‘Conference’, can be stored for a long period if kept in good storage conditions. A three-year study (2011–2013) compared the impact of six-month storage using four technologies—normal atmosphere, normal atmosphere + 1-methylcyclopropene (1-MCP), controlled atmosphere, and controlled atmosphere + 1-MCP—on the quality parameters of ‘Conference’ pears, such as mass loss, firmness, total soluble solids, acidity, antioxidant capacity, and the incidence of diseases and disorders. Additionally, the study analysed different storage conditions in terms of profitability, based on the market prices for pears in the seasons during which the pears were stored. The storage conditions had a very strong influence on the fruit quality parameters, and were found to affect most visibly the mass loss and the incidence of postharvest diseases and disorders. The storage of ‘Conference’ pears for 180 days in normal atmosphere is not economically viable, even if the fruit is subjected to 1-MCP treatment; at the same time, it is profitable to store ‘Conference’ pears in controlled atmosphere for the same period, no matter whether 1-MCP was applied or not.


HortScience ◽  
1993 ◽  
Vol 28 (4) ◽  
pp. 259D-259
Author(s):  
George M. Greene ◽  
Cynthia L. Barden ◽  
Laura Lehman-Salada

York Imperial is an important processing apple cultivar in the mid-Atlantic region and is often stored for up to eleven months. This experiment was designed to further examine the optimum CA storage conditions for this cultivar. Six orchards were used as statistical blocks. The factorial experiment was set up with 2 temperatures (0 and 2C), 2 oxygen (1 and 2%) and 3 carbon dioxide concentrations (2,3.5 and 5%). Sample size was 20 fruit at all analysis periods (at harvest, 4, 6, and 8 months). The apples were stored in a recirculating CA research facility and evaluated for firmness, soluble solids and weight loss. In the overall statistical analysis, orchard blocks, harvest dates and storage times significantly influenced all 3 quality parameters. Differences between blocks at harvest were substantial with firmness ranging from 9.5 to 11.3 kg and the soluble solids ranging from 12.8 to 14.8%. At the third storage removal (8 months), low oxygen increased firmness and decreased weight loss during storage while at the lower temperature, apples were firmer, had higher soluble solids and less weight loss than at the higher temperature. Although statistically significant, the differences may not be commercially important Block differences were generally maintained throughout storage.


2017 ◽  
Vol 29 (2) ◽  
pp. 113-121 ◽  
Author(s):  
Ewa Dziedzic ◽  
Jan Błaszczyk ◽  
Elżbieta Kaczmarczyk

ABSTRACT‘Regina’ sweet cherry fruit (Prunus avium L.) harvested from trees grown on vigorous and semi-dwarfing rootstocks was stored in normal atmosphere (NA) at 8°C and 2°C, and in a controlled atmosphere (CA) 3% O2 + 5% CO2at 2°C for two weeks. At harvest time, the fruits differed in the measured quality parameters (firmness, soluble solids content - SSC, titratable acidity - TA) depending on the rootstock. The storage conditions and the rootstocks significantly influenced the fruit quality parameters after storage. Generally, reduced fruit firmness and TA, and higher SSC and SSC/TA ratio were observed at the end of the storage period. Among the rootstocks, the lowest soluble solids content was found in the fruit from trees on the vigorous F12/1 rootstock. The lower storage temperature decreased the SSC independently of the storage atmosphere composition. Firmer fruit was found in CA 2°C compared with the other two treatments. The greatest loss of weight was found after fruit storage in NA 8°C. The extent of fruit decay depended on the season, storage conditions and the rootstock. Storage in NA 8°C of the fruit grown on F12/1 rootstock resulted in the highest percentage of fungal decay. The best retention of the green colour of the peduncle was noted in CA 2°C. The findings on how the rootstocks affect sweet cherry fruit properties can be useful for sweet cherry breeding programmes, as well as for sweet cherry crop production and storage technologies.


Author(s):  
Ioana Bezdadea-Catuneanu ◽  
Liliana Badulescu ◽  
Andreea Stan ◽  
Dorel Hoza

Abstract The aims of this work were to determine which storage conditions can preserve the quince quality (Cydonia oblonga Miller, Rosaceae family), stored in three different rooms with controlled atmosphere (CA). Due to their reported high polyphenolic content in the fruit, three varieties of quinces, like Ekmek, Bereczhi and Tinella were stored and monitored for twelve months. During storage period, the following quality parameters were monitored: dry matter content (D.M.%), titratable acidity (TA), soluble solids (°Brix), firmness, antioxidant capacity and also content in total flavonoids and total polyphenols. After twelve months of storage, observations showed that quince from Tinella variety presented better quality parameters compared to quinces from Ekmek and Bereczhi varieties. As expected, keeping quinces in the presence of CO2content, respectively 2% and 5%, presented better physical and biochemical quality compared with those stored without CO2 (control).


2017 ◽  
Vol 9 (4) ◽  
pp. 2137-2142
Author(s):  
Abhimanyu Thakur ◽  
N. S. Thakur ◽  
Pradeep Kumar

Box myrtle (Myrica nagi) belongs to family Myricaceae is a sub-temperate tree found throughout the mid-Himalayas at an elevation of 1300 to 2100 meters above mean sea level. Its fruits are known for their ravishing taste and have been reported as rich source of anti-oxidants like phenols and anthocyanins. In the present study drink was prepared from box myrtle juice and quality evaluation was carried out during six months of storage of fruit drink. Different combinations of juice (8%, 10%, 12%, 14% and 16 %) and sugar syrup/TSS (Total soluble solids) (12 oB and 15 oB) were tried to standardize proper combination for drink. The drink prepared by following the best selected recipe (14 % juice and 12 oB TSS) was packed in glass and PET (Polyethylene terephthalate) bottles and stored for six months under ambient and refrigerated temperature conditions. Drink could be safely stored for a period of six months under both the storage conditions without much change in various quality characteristics. Various physico-chemical characteristics increased/decreased like TSS (12.05 to 12.48 oB), reducing sugars (7.80 to 8.69 %), titratable acidity (0.30 to 0.27 %), ascorbic acid (1.09 to 0.47 mg/100 g), total phenols (27.35 to 19.11 mg/100 g) and anthocyanins (6.14 to 3.69 mg/100 g). However, the changes in the quality characteristics of the drink were slower in refrigerated storage conditions as compared to ambient conditions. Both the packaging materials viz. PET and glass bottles were found suitable, with comparatively less changes occurring in glass bottles stored under refrigerated conditions.


1997 ◽  
Vol 3 (3) ◽  
pp. 203-211 ◽  
Author(s):  
J. Graell ◽  
C. Larrigaudiere ◽  
M. Vendrell

In a 2-year study, Topred (TR) apples harvested from the area of Lleida (NE Spain) were treated with 3 rates (0, 1000 and 2000 ppm) of diphenylamine (DPA) and held in 3 different experimental storage conditions: standard controlled atmosphere (CA) with 3% O2 and 3% CO2; low oxygen (LO) atmosphere with 2% O2 and 2% CO2; ultra-low oxygen (ULO) atmosphere with 1% O2 and 1% CO2. All samples were maintained at 1 °C and 93-94% relative humidity. The incidence of super ficial scald and quality parameters were assessed in February, April and June, after storage plus 1 and 7 days at 20 °C, in samples from each treatment (anti-scald rate and storage atmosphere). Storage in ULO was effective in extending the storage life of the fruit. Firmness retention was better in these fruits than in fruits held in CA and LO storage; generally, after a 7-day post-storage holding period at 20 °C, the differences were maintained. The soluble solids content and titratable acidity were similar for all treatments. These changes were similar for the 2 years studied. Over one season (1993-94) the ULO atmosphere provided the best control of superficial scald in TR apples, although a low concentration of anti-scald was necessary in some cases. During the 7-day post-storage holding period the fruit of all treatments showed an increased incidence of scald, but fruit from the ULO treatment could be considered acceptable for market distribution. Susceptibility of fruit to scald exhib ited seasonal variation; in the 1994-95 season, DPA treatment was necessary to control scald in ULO apples. No appreciable increase in low O2 injury was found in this cultivar held in 1 or 2% O2.


2014 ◽  
Vol 3 (5) ◽  
pp. 8 ◽  
Author(s):  
Maria Lorena Luna-Guevara ◽  
Oscar Jimenez-Gonzalez ◽  
Juan Jose Luna-Guevara ◽  
Paola Hernandez-Carranza ◽  
Carlos Enrique Ochoa-Velasco

<p>Tomato is one of the most important crops at worldwide; however, much of the production is lost during the postharvest due to the inadequate storage conditions. The aim of this study was to evaluate the effects of different postharvest conditions on some quality and bioactive parameters of tomatoes. Tomatoes Roma VF variety were stored at three temperature (7, 22, and 37 °C) to evaluate some physicochemical characteristics (pH, total soluble solids, titratable acidity, color, and firmness) and bioactive compounds (vitamin C, lycopene, carotenoids, and antioxidant activity) during five days; time in which tomato change from physiological to edible maturity. The <em>a</em> color parameter increased significantly (p &lt; 0.05) at the storage temperature of 22 and 37 °C. The firmness was higher in tomato stored at 7 °C after 5 days, while at 37 °C the firmness decrease in 8%. Tomatoes stored at 22 °C showed a decrease of chlorophyll <em>a</em> and <em>b</em>, reaching the maximum lycopene (31.7 ± 1.5 mg/kg fresh weight) and carotenoids contents (118.7 ± 0.1 ?g/100 g fresh weight), while at 7 and 37 °C the chlorophyll <em>a</em> did not change during the storage. However, the vitamin C was higher in tomatoes stored at 7 and 37 °C. The antioxidant activity remains constant during the time of storage, regardless the temperature. The storage temperature of 22 °C not affected significantly (p &lt; 0.05) the color and firmness of tomatoes, at the same temperature, the bioactive compounds (carotenoid, vitamin C, and antioxidant activity) presented highly correlated with the developments of the red color.</p>


2012 ◽  
Vol 1 (3) ◽  
pp. 159 ◽  
Author(s):  
M. Moalemiyan ◽  
H. S. Ramaswamy

<p>Edible coating is a simple and inexpensive concept for extending post-harvest life of fruits and vegetables. In this study, cucumbers were coated with different pectin-based emulsions to preserve the fruit quality and extend the post harvest shelf life. The formulations consisted of pectin, beeswax, sorbitol, water, and an emulsifying agent. By monitoring the physiological and quality parameters, the coating effects on the storability of cucumber fruits at 23°C and 40% RH (display cabinet), and 12°C and 85% RH (cold room) were determined. The parameters included weight loss, respiration rate, firmness, color, soluble solids and chlorophyll content. The coating markedly reduced weight loss and respiration rate at both temperatures. In addition, the coating reduced loss of firmness, color, chlorophyll and total soluble solids, and extended the storage life of cucumber fruits at both storage conditions.</p>


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