scholarly journals The Effect of Treating String Bean Pods with Modified Atmosphere Packaging and UV-C Irradiation on Their Storage Life

Agronomy ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 1747
Author(s):  
Jolanta Franczuk ◽  
Robert Rosa ◽  
Anna Zaniewicz-Bajkowska ◽  
Agnieszka Ginter
Keyword(s):  
Dry Matter ◽  
Modified Atmosphere Packaging ◽  
Storage Life ◽  
Modified Atmosphere ◽  
Total Sugars ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
And Storage ◽  
Uv C

The aim of the experiment was to determine the optimal treatment of string bean pods, prolonging their storage life. To this end, the effect of modified atmosphere packaging in Xtend® bags (CH-49) and UV-C radiation on the quality of string beans ‘Unidor’ in cold storage was studied. Observations of the pods and their measurements were made after 14 and 28 days and chemical analyses 14 days after irradiation exposure and storage at 2–4°C. The tests were conducted in laboratory conditions in a completely randomized design. Storing bean pods in Xtend® bags significantly increased the weight and umber of pods fit for consumption, compared to those stored in bulk. However, the content of dry matter, total sugars, and protein in pods stored in Xtend® bags decreased. Irradiation, regardless of the exposure time and the distance of lamps from the surface, contributed to an increase in the weight and number of pods suitable for consumption after 14 and 28 days. After 14 days irradiated pods contained more dry matter, L-ascorbic acid, polyphenols and flavonoids. After UV-C irradiation for 600 seconds with lamps at a height of 40 cm pods in Xtend® bags responded with the most favorable protein content.

scholarly journals Effects of 1-MCP on External Postharvest Qualities and Shelf Life of ‘Maha Chanok’ Mango Fruit

2015 ◽  
Vol 8 (1) ◽  
pp. 68
Author(s):  
B. Chutichudet ◽  
Prasit Chutichudet ◽  
Usana Trainoak
Keyword(s):  
Chlorophyll Content ◽  
Fruit Weight ◽  
Storage Life ◽  
Fruit Firmness ◽  
Mango Fruit ◽  
Chlorophyll Contents ◽  
Randomized Design ◽  
Fruit Decay ◽  
Completely Randomized Design ◽  
And Storage

<p>‘Maha Chanok’<strong> </strong>mango is an economic fruit crop widely cultivated commercially throughout Thailand. By nature, mango fruit has a rather limited storage life after harvest. 1-methylcyclopropene (1-MCP) has been accepted as a commercial substance to improve several fruit qualities. The objective of this research was to study the effects of 1-MCP on the external postharvest qualities and storage life on the ‘Maha Chanok’ mango fruit. The experiment was laid out in a Completely Randomized Design with three replicates, ten fruits per replicate. Mango fruit was fumigated with 1-MCP at three concentrations (1000, 1250, or 1500 nl l<sup>-1</sup>) and three fumigation periods (12, 18, or 24 h), compared with the control fruit. After treating, all treatments were stored under ambient temperature (27 °C, 80%R.H.). The following determinations were made every two days for assessment of fruit weight loss, firmness, chlorophyll content, decay incidence, and storage life. The results showed that fruit treated with 1500 nl l<sup>-1</sup><strong> </strong>1-MCP for 24 h had the maximal fruit firmness. For chlorophyll content, the results showed that fruit-treated with 1500 nl l<sup>-1</sup><strong> </strong>1-MCP for 12 h could effectively retain the highest chlorophyll contents. Furthermore, both the lowest fruit decay and the longest storage life of 12 days were achieved from the fruit treated with 1000 nl l<sup>-1</sup><strong> </strong>1-MCP for 12 h.</p>

scholarly journals Size and vigor of Anadenanthera colubrina (Vell.) Brenan seeds harvested in Caatinga areas

2017 ◽  
Vol 39 (4) ◽  
pp. 363-373 ◽  
Author(s):  
Jaciara de Souza Bispo ◽  
Danielle Carolina Campos da Costa ◽  
Samara Elizabeth Vieira Gomes ◽  
Gilmara Moreira de Oliveira ◽  
Janete Rodrigues Matias ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Dry Matter ◽  
Folk Medicine ◽  
Germination Percentage ◽  
Climate Variations ◽  
Randomized Design ◽  
Mother Plants ◽  
Physiological Quality ◽  
Completely Randomized Design

Abstract: Angico is a species found in several environments in Brazil, with several applications. It is used in the timber industry and mainly in folk medicine. In order to verify a variation in the biometric characteristics and the quality of seeds from different mother-plants in different harvesting years, the following variables were studied: moisture content, diameter, density, electrical conductivity, fresh and dry matter of seedlings, germination percentage and kinetics, in a completely randomized design with a 2x3 factorial arrangement (lots x size). The obtained results showed that angico seeds from different lots showed different physiological quality, possibly due to the climate variations to which mother-plants were submitted in the different years. Seed size directly interferes with seedling growth under both controlled and greenhouse conditions, and it can be used as a vigor indicator for angico seeds.

scholarly journals Production of Bambusa vulgaris seedlings from rhizomes under brackish water irrigation

2020 ◽  
Vol 24 (5) ◽  
pp. 337-342
Author(s):  
Lourenço M. C. Branco ◽  
Claudivan F. de Lacerda ◽  
Albanise B. Marinho ◽  
Carlos H. C. de Sousa ◽  
Amanda S. F. Calvet ◽  
...  
Keyword(s):  
Gas Exchange ◽  
Brackish Water ◽  
Dry Matter ◽  
Leaf Gas Exchange ◽  
Photosynthesis Rate ◽  
Seedling Production ◽  
Randomized Design ◽  
Bambusa Vulgaris ◽  
Completely Randomized Design

ABSTRACT The objective of this study was to evaluate the influence of irrigation with brackish water on the production of bamboo seedlings (Bambusa vulgaris). The experiment was carried out at the Fazenda Experimental Piroás, in the municipality of Redenção, CE, Brazil (4° 14’ 53” S, 38° 45’ 10” W, and altitude of 230 m), in a completely randomized design with five treatments and six repetitions. The treatments consisted of five irrigation water electrical conductivity (ECw): 0.5 (control); 1.5; 2.5; 3.5 and 4.5 dS m-1. At 120 days after the beginning of the application of the treatments the leaf gas exchange, relative chlorophyll index (RCI), plant height (H), shoot dry matter (SDM), H/SDM ratio, and the concentrations of Na+ and K+ in stems and leaves were evaluated. Salt tolerance indexes were calculated based on SDM, H, photosynthesis rate and RCI. The increase in the ECw reduced leaf gas exchange, and the reduction in the photosynthesis rate was caused by stomatal and non-stomatal effects. The salinity affected negatively the growth and quality of bamboo seedlings, with the greatest effects being with ECw equal to or greater than 2.5 dS m-1. Bamboo seedlings present Na+ retention in the stems and low Na+/K+ ratio in the leaves. Bamboo seedlings are tolerant to salinity up to 1.5 dS m-1, indicating that waters with this salinity can be used for seedling production of this species, without loss of growth and quality.

scholarly journals Substrate and seed sowing position on the production of Plukenetia volubilis L. seedlings

2018 ◽  
Vol 22 (6) ◽  
pp. 396-400 ◽  
Author(s):  
Tatiane S. Jeromini ◽  
Ana S. V. Barbosa ◽  
Givanildo Z. da Silva ◽  
Cibele C. Martins
Keyword(s):  
Fatty Acids ◽  
Dry Matter ◽  
Plant Production ◽  
Economic Potential ◽  
Randomized Design ◽  
Seed Position ◽  
Emergence Percentage ◽  
Plukenetia Volubilis ◽  
Completely Randomized Design

ABSTRACT Plukenetia volubilis is a species native to the Amazonia and has economic potential due to the high contents of polyunsaturated fatty acids and vitamins of the seeds; however, information about production of seedlings in nursery is scarce. Factors that contribute to fast emergence and generation of vigorous seedlings are desirable for plant production in the nursery. Therefore, this study aimed to identify the most favorable substrate and seed position for the production of P. volubilis seedlings. The seeds were sown in the following four positions: hilum facing up, hilum facing down, seed lying on its cotyledon suture, and seed lying flat on one of its cotyledon faces. The substrates were sand, vermiculite and commercial substrate. Treatments were distributed according to a completely randomized design in a 4 × 3 factorial arrangement (seed position and substrate) with three replicates of 25 seeds each. The following variables were evaluated: emergence percentage; first count of seedlings; number, width and length of leaves; plant height; stem diameter; dry matter of shoots and roots. It was concluded that the production of P. volubilis seedlings is not affected by either substrate or seed position at sowing. The substrates most favorable to the quality of P. volubilis seedlings were the commercial substrate and vermiculite, always for the positions of seed lying on its cotyledon suture, with faces parallel to tube walls, and seed lying flat on one of its faces.

scholarly journals Effect of Modified Atmosphere Packaging (MAP) and UV-C Irradiation on Postharvest Quality of Red Raspberries

Agriculture ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 29
Author(s):  
David Gimeno ◽  
Jaime Gonzalez-Buesa ◽  
Rosa Oria ◽  
Maria Eugenia Venturini ◽  
Esther Arias
Keyword(s):  
Shelf Life ◽  
Modified Atmosphere Packaging ◽  
Rubus Idaeus ◽  
Postharvest Quality ◽  
Modified Atmosphere ◽  
Packaging Film ◽  
Transmission Rates ◽  
Bioactive Content ◽  
Uv C

Red raspberries (Rubus idaeus L.) are highly appreciated by consumers. However, their postharvest shelf life scarcely exceeds 5 d under the refrigeration temperatures usually applied during commercialization, due to their high susceptibility to dehydration, softening and rot incidence. Thus, the objective of this study was to investigate the ability of UV-C radiation (UV1: 2 kJ m−2 and UV2: 4 kJ m−2), passive modified atmosphere packaging (MAP) with transmission rates (TR) for O2 and CO2 of 1805 mL d−1 and 1570 mL d−1 (MAP1), and 902 mL d−1 and 785 mL d−1 (MAP2), respectively, and the combination of both technologies to prolong raspberries’ shelf life at 6 °C. Their influence on respiration, physicochemical parameters, and microbiological and nutritional quality was assessed during 12 d of storage. The combination of 4 kJ m−2 UV-C radiation and a packaging film with O2 and CO2 transmission rates of 902 mL d−1 and 785 mL d−1, respectively, produced a synergistic effect against rot development, delaying senescence of the fruit. The UV2MAP2 and MAP2 samples only showed 1.66% rot incidence after 8 d of storage. The UV2MAP2 samples also had higher bioactive content (1.76 g kg−1 of gallic acid equivalents (GAE), 1.08 g kg−1 of catechin equivalents (CE) and 0.32 g kg−1 of cyanidin 3-O-glucoside equivalents (CGE)) than the control samples at the end of their shelf life. Moreover, the mass loss was minimal (0.56%), and fruit color and firmness were maintained during shelf life. However, the rest of the batches were not suitable for commercialization after 4 d due to excessive mold development.

scholarly journals Enrichment on quality of aonla (Emblica officinalis G.) fruit bars by blending

2017 ◽  
Vol 9 (1) ◽  
pp. 162-166
Author(s):  
Deepika Deepika ◽  
Payel Panja
Keyword(s):  
Initial Moisture Content ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Fruit Pulp ◽  
Organoleptic Evaluation ◽  
Total Sugars ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Mango Pulp

The main objective of the study was to standardize enrichment of aonla pulp to develop fruit bars. The experiment was laid out in Completely Randomized Design (CRD) with 10 treatments. Aonla pulp was blended with 25 to 75% of different fruit (mango, papaya and jackfruit) pulp viz. Aonla pulp, Aonla with mango, papaya and jackfruit in different proportion of 3:1, 1:1 and 1:3 each fruit respectively. The initial moisture content was higher in aonlapulp enriched with mango pulp in 1:3 proportions. Enrichment of aonlapulp with fruit pulp of mango, papaya and jackfruit reduced the ascorbic acid, titratable acidity and tannin content of the resultant fruit bars compared to that from pure aonla pulp, which is an indication in the reduction of astringency. Enrichment also resulted in an increase in total soluble solids, reducing, non-reducing and total sugars of the resultant fruit bars. Enrichment of aonla pulp with fruit pulp of provitamin A rich fruits like mango, papaya and jackfruit showed a rise in total carote-noids and reduced astringency and acidity, thereby resulting in fruit bars with altered palatability and enhanced nutrition. Enriched fruit bars contained three vital antioxidants viz. Vitamin C, carotenoids and polyphenols of all the treatments, enriched fruit bar containing 25 % aonlaand 75 % mango (T4) was found superior in organoleptic evaluation.

scholarly journals PENGARUH KEMASAN TERHADAP KUALITAS DADIH SUSU SAPI

2012 ◽  
Vol 35 (2) ◽  
pp. 96
Author(s):  
Miskiyah (Miskiyah) ◽  
Wisnu Broto
Keyword(s):  
Dairy Product ◽  
Total Solid ◽  
Buffalo Milk ◽  
Packaging Material ◽  
Storage Life ◽  
Cow Milk ◽  
Titratable Acid ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
And Storage

<p>Dadih is a traditional dairy product obtained from a fermentation of buffalo milk and usually packed using bamboo. The usage of bamboo for dadih packaging has limitation in transportation and storage life. This study aimed to examine the effect of packaging material to dadih quality produced from cow milk during storage. Experimental design used at this study was Completely Randomized Design with Factorial pattern (7 x 7). The first factor is packaging material that are bamboo; cup plastic pp; flexypack packaging; clay; flexypack packaging (with evacuation from bamboo); clay (with evacuation from bamboo); cup plastic pp (with evacuation from bamboo). The second factor is storage time (0, 4, 8, 12, 16, 20, and 24 days). Result showed that best packaging to cow milk dadih is flexypack and cup plastic pp. Cow milk dadih that was packed in flexypack and cup plastic pp had storage life up to 24 days at cold temperature (refrigerator). From the perspective of economic, cup plastic pp packaging showed most efficient<br />packaging. Characteristic of cow milk dadih packaged in cup plastic pp were total of titratable acid 1,60%; pH 3,88; viscocity 351,43 cPs; total solid 14,75%; water content 85,25%; ash content 0,90%; protein content 2,43%; fat content<br />3,68%; total of lactic acid bacteria (LAB) at 8 x 1011 CFUs/g. Total LAB at dadih packaged in other kinds of packaging were &gt;108 CFUs/ml. Organoleptic test showed that cup plastic pp packaging had excellence in tidiness attribute and<br />consumption amenity. Meanwhile, curd of dadih packaged in bamboo and flexypack had excellent at color and aroma. Clay packaging had excellence in mouthfell and texture. In general, the first priority of dadih choosen by panelist was cow milk dadih packed in clay packaging, bamboo treatment to flexypack packaging, and bamboo treatment to cup plastic pp.</p><p>(Keyword: Dadih, Packaging, Quality)<br /><br /></p>

scholarly journals Morphological and nutritional evaluation of ‘caraíba’ seedlings in different substrates using domestic sewage effluent for fertirrigation

DYNA ◽  
2020 ◽  
Vol 87 (214) ◽  
pp. 85-92
Author(s):  
Raimundo Fernandes de Brito ◽  
Miguel Ferreira Neto ◽  
Jonath Werissimo Da Silva Gomes ◽  
Ana Luíza Lima Ferreira ◽  
Nildo Da Silva Dias ◽  
...  
Keyword(s):  
Dry Matter ◽  
Domestic Sewage ◽  
Sewage Effluent ◽  
Nutritional Evaluation ◽  
Shoot Height ◽  
Randomized Design ◽  
Collar Diameter ◽  
Completely Randomized Design ◽  
Nitrogen Phosphorus

In this study, we evaluated the effects of fertigation with domestic sewage effluent and different substrates on the growth of Caraíba seedlings (Tabebuia aurea Benth). The experiment was accomplished in a greenhouse in Mossoró, RN. Five irrigation solutions (100% of water supply - WS, 100% of domestic sewage effluent – DS and dilutions of 75% DS + 25% WS, 50% DS + 50% WS e 25% DS + 75% WS) were tested and two substrates (75% soil + 25% bovine manure and 75% soil + 25% coconut fiber) using completely randomized design in subdivided plots with three replicates per treatment. Growth and development parameters were measured at 30, 60, 90, and 150 days after cultivation. The variables shoot height, collar diameter, height/diameter ratio, dry matter of root, shoot and total (root and shoot), shoot/root ratio, Dickson quality index, and nutritional evaluation of nitrogen, phosphorus, potassium and calcium were determinate. We verified that the use of domestic sewage increased growth and quality of caraíba seedlings, besides promoting nutrient accumulation in the plants grown in substrate of bovine manure plus soil with 100% application of domestic sewage in the fertigation.

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