scholarly journals Pre-dehydration treatments and quality of processed potatoes during storage

2021 ◽  
Vol 39 (4) ◽  
pp. 383-388
Author(s):  
Dilson Antonio Bisognin ◽  
Marlene Terezinha Lovatto
Keyword(s):  
Water Activity ◽  
Storage Period ◽  
Dry Mass ◽  
Cooking Time ◽  
Sodium Metabisulfite ◽  
Water Control ◽  
Rehydration Ratio ◽  
Processed Potatoes ◽  
And Storage

ABSTRACT The aim of this work was to study pre-dehydration treatments to maintain consumption quality of processed potatoes (Solanum tuberosum) over a long storage period. Tubers of the cultivars Asterix, Macaca and Agata were cut into cubes and submitted to the following pre-dehydration treatments: water (control), blanching, and blanching with different doses of sodium metabisulfite. Sulphur dioxide residue and microorganism detection were determined right after the dehydration process was completed. Water activity, color, rehydration ratio, cooking time and rehydration ratio after cooking were determined at the beginning and after one and two years of storage. Blanching, cultivar and storage affected rehydration ratio, an important parameter used to measure the quality of dehydrated products. Tubers with higher dry mass content resulted in lower water activity and rehydration ratio, longer cooking time and higher rehydration ratio after cooking than those with lower dry mass. The combination of blanching with sodium metabisulfite improves product quality, reduces microbial load, enhances dehydration rate and prevents oxidation and browning reactions during processing and storage. The effects of the structural damages of pre-dehydration and dehydration treatments on the rehydration ratio and the rehydration ratio after cooking increase with storage of processed potatoes.

scholarly journals Penurunan mutu dan pendugaan umur simpan sup krim instan labu kuning diperkaya tempe untuk lansia dengan metode accelerated shelf life testing (ASLT)

2020 ◽  
Vol 8 (2) ◽  
pp. 134-142
Author(s):  
Salma Shafrina Aulia ◽  
Budi Setiawan ◽  
Tiurma Sinaga ◽  
Ahmad Sulaeman
Keyword(s):  
Lipid Oxidation ◽  
Shelf Life ◽  
Water Content ◽  
Water Activity ◽  
Critical Parameter ◽  
Storage Period ◽  
Life Testing ◽  
Quality Of Water ◽  
Long Time

Background: Instant pumpkin cream soup enriched with tempeh had fulfilled 10% Recommended Dietary Allowances (RDA) for elderly so that it can be used as an easy-to-serve snack, but decreasing quality of instant cream soup will be happened if the instant cream soup was stored for a long time. Objectives: This study aimed to analyze quality of water content, water activity and lipid oxidation in instant pumpkin cream soup during storage and estimated the shelf life of pumpkin cream soup enriched with tempeh.Method:  Quality storage was analyzed using of water content, water activity (aw) and lipid oxidation. Estimation of shelf life was analyzed using Arrhenius Accelerated Shelf Life Testing (ASLT) model.Results: The results showed that the water content, aw levels and lipid oxidation of instant pumpkin cream soup increased during the storage period. The critical parameter used in this study was lipid oxidation. Instant cream soup without the addition of tempeh can last 447 days  while the cream soup with the addition of tempeh has a shelf life of 433 days.Conclusion: Quality of instant pumpkin cream soup decreased during the storage period and it would be expired over a year.

scholarly journals The sensory evaluation of fermented sausages Herkules with probiotic strain Lactobacillus casei 01

2009 ◽  
Vol 57 (5) ◽  
pp. 57-64
Author(s):  
Radka Burdychová ◽  
Hana Šulcerová
Keyword(s):  
Lactobacillus Casei ◽  
Sensory Quality ◽  
Storage Period ◽  
Probiotic Strain ◽  
Negative Control ◽  
Fermented Sausages ◽  
Dry Sausages ◽  
And Storage ◽  
Ph Profiles

The aim of this work was to monitor quantitative and qualitative representation of probiotic strain L. casei 01 (Sacco, Italy) in dry femented sausages „Herkules“ taken from two different producers (A and B). Negative control susages without probiotics were also made at both producers, to monitor the differences between pH profiles of and lactic acid bacteria counts during fermentation and sto­ra­ge of dry sausages. The second objective of this study was to determine sensory quality of probiotic sausages in comparison with non-probiotic controls.The counts of L. casei and LAB in all sausages significantly (P < 0,01) increased during fermentation and storage period. Probiotic L. casei was well adapted to dry sausages environment and reached 106 CFU/g in both producers. No differences between pH profiles of probiotic sausages and controls without probiotics were observed.It was observed that all probiotic sausages had sensory properties near the traditional products.

scholarly journals Physiological quality of pink pepper seeds (Schinus terebinthifolia Raddi.) as a function of storage

2021 ◽  
Vol 38 (1) ◽  
pp. 144-157
Author(s):  
Thaísa De Oliveira Silveira ◽  
Madelon Rodrigues Braz ◽  
Gilmara Pires de Moura Palermo ◽  
Tiago Böer Breier
Keyword(s):  
Moisture Content ◽  
Storage Time ◽  
Storage Period ◽  
Seed Storage ◽  
Dry Weight ◽  
Native Forest ◽  
Alternative Source ◽  
Physiological Quality ◽  
And Storage

Seeds of native forest species for food and seedling production have a growing demand that impacts the need for studies involving seed storage in order to maintain good levels of germination quality. Thus, scientific analyzes that explore the physiological potential of the seeds of these species are necessary, especially for the pink pepper (Schinus terebinthifolia Raddi.), a species used as an alternative source of income for traditional communities and which has been arousing interest due to the consumption of its fruits as a condiment in the national and international market. This work aimed to assess the physiological quality of pink pepper seeds according to the storage period and seed size. The seeds came from a rural settlement, a pioneer in the extraction of pink pepper, in the state of Rio de Janeiro, Brazil. The seeds were evaluated for moisture content, germination, first count, length and dry weight of the germinated seedlings, during the period of time that they remained stored and the size of the seeds. The results allowed to conclude that: i) the germinative percentage of the stored pink pepper seeds decreased over the months; ii) the moisture content of the seeds decreased over the months evaluated iii) the different sizes of seeds did not show differences in germination and storage time and iv) values of length and dry weight of the seedlings did not differ according to the period of storage.

scholarly journals Influence of drying temperature and storage period on the quality of cherry and plum tomato powder

2018 ◽  
Vol 6 (4) ◽  
pp. 1146-1153 ◽  
Author(s):  
Adewale Obadina ◽  
Jumoke Ibrahim ◽  
Ifeoluwa Adekoya
Keyword(s):  
Storage Period ◽  
Drying Temperature ◽  
Tomato Powder ◽  
And Storage

Effect of postharvest mechanical stress on quality and storage life of Chinese cabbage cv. Yuki

2004 ◽  
Vol 44 (6) ◽  
pp. 629
Author(s):  
K. Porter ◽  
G. Collins ◽  
A. Klieber
Keyword(s):  
Mechanical Stress ◽  
Chinese Cabbage ◽  
Brassica Campestris ◽  
Storage Period ◽  
The Other ◽  
Market Quality ◽  
Marketable Yield ◽  
And Storage ◽  
Hard Floor

The effects of 3 common handling procedures and mishaps (dropping, compression and trimming) applied to Chinese cabbage cv. Yuki [Brassica campestris L. ssp. pekinensis (Lour.) Olsson] were compared to unstressed control cabbages. Heads were mechanically stressed by dropping from 50 cm onto a hard floor, by prolonged compression under 3 kg of weight before storage, or by repeated trimming of the outer leaves during storage. Cabbages were stored at 2°C for 9 weeks. Market quality of cabbages was not affected by the mechanical stresses, but storage for 9 weeks reduced marketable quality. Heads that were repeatedly trimmed produced less ethylene at the end of the storage period compared to the start, and less ethylene than the other treatments (due to the removal of outer senescing and rotting leaves); however, marketable yield was not improved.

scholarly journals Evaluation of Contamination Risks Due to the Sale and Storage Conditions of Smoked, Dried and Fresh Fishes in Ouagadougou

2021 ◽  
pp. 42-54
Author(s):  
Arouna Ouedraogo ◽  
Cheikna Zongo ◽  
François Tapsoba ◽  
Hama Cissé ◽  
Yves Traoré ◽  
...  
Keyword(s):  
Burkina Faso ◽  
Storage Period ◽  
Storage Conditions ◽  
Smoked Fish ◽  
Different Types ◽  
And Storage ◽  
Fish Industry ◽  
Fish Trade ◽  
Temperature Storage

Aims: Fish is a product more and more consumed in Burkina Faso, especially in Ouagadougou. Poor sale and storage conditions can impact on the hygienic quality of fish. The objective of this study was to identify the contamination risks due to the sale and storage conditions of smoked, dried and fresh fishes. Study Design: A descriptive design was used to identify the different types and origins of fish on the markets in Ouagadougou and the practices and conditions of sale that could be sources of chemical and microbiological contamination. Place and Duration of Study: Relevant data was collated in Ouagadougou (Burkina Faso) from February 2019 to July 2019. Methodology: A survey was conducted among traders of dried and smoked fish from 50 markets and major sales sites in Ouagadougou. Data collection was done using a questionnaire developed with Sphinx Plus2 software. Results: The results indicated a higher proportion of men (75%) than women (25%) with an age between 21 and 45 years old were participated in fish trade. The fish encountered in the markets of Ouagadougou come from Sourou, Kompienga and Bagré, as well as from external suppliers such as Côte d'Ivoire, Mali and Senegal. The different types of fish sold were dried or smoked carp (36.67%), smoked catfish (23.33%), dried Nanani or Djêdjê wala (concorde) (13.33%), smoked Macharon (10%), smoked Racok (10%) and smoked eels or Roolgo in mooré (local language) (6.67%). The types of fish most purchased by consumers, in order, were: Carp, Catfish, Macharon, Nanani. In addition, the study detected risks of contamination of the fish, namely: exposure material consisting of tables and baskets, conservation at room temperature, storage period of 10 to 30 days, no training in hygiene, fish served with bare hands, exposed to dust and stray animals. Conclusion: In sum, the study revealed some characteristics of the fish industry in Ouagadougou and also risks of contamination of fish sold on the markets.

scholarly journals Effects of Harvesting Stages, Preservatives, and Storage Methods on Vase Life and Flower Quality of Cut Snapdragons

HortScience ◽  
1995 ◽  
Vol 30 (4) ◽  
pp. 835F-835
Author(s):  
Jong Suk Lee ◽  
Young A Kim ◽  
Young Mi Sin
Keyword(s):  
Vase Life ◽  
Plain Water ◽  
Fresh Weight ◽  
Water Control ◽  
Preservative Solution ◽  
Storage Methods ◽  
Flower Quality ◽  
And Storage ◽  
Preservative Solutions

Cut snapdragons (Antirrhinum majus L. cvs. Fujinoyuki, Oakland, and Bismarck) were harvested at three different stages and pulsed with silver thiosulfate (STS). Then, the flowers were treated with several preservative solutions to test the effects on vase life and flower quality. Proper storage methods were also investigated. The best harvesting time of snapdragon was when seven to nine florets were opened in a spike. The flowers harvested at this stage had more fresh weight, increased number of opened flowers per spike, and longer vase life than those harvested at earlier stages. Pulsing with 0.2 mM STS for 16 h improved flower quality and prolonged vase life. The preservative solution containing 2% sucrose + 150 ppm 8-hydroxyquinone citrate (HQC) + 25 ppm AgNO3 prolonged vase life. However, this solution caused longer internode between florets and excessive elongation of spike. The preservative solution containing 2% sucrose + 150 ppm HQC + 25 ppm AgNO3 + 50 ppm daminozide improved flower quality by prolonging vase life, reducing the length of internode between florets, and preventing excessive elongation of spike. The flowers held in 50% 7-Up had 2 times prolonged vase life compared to water control. The flowers held in 4% ethyl alcohol also had prolonged vase life and increased fresh weight. Ethylene caused floret abscission and STS pretreatment prevented this floret abscission. Ethylene production in cut snapdragons maintained 2 to 6 nl/g fresh weight per h during vase life. The prolonging storage at low temperature (1C) shortened vase life. The flowers pretreated with STS, and then held in preservative solution during cold storage, had better flower quality and longer vase life than those in plain water.

scholarly journals Effect of washing time and storage of raw Material on Surimi and Kamaboko of Tilapia (Oreochromis sp.)

2020 ◽  
Vol 7 (3) ◽  
pp. 89
Author(s):  
Eka Saputra
Keyword(s):  
Water Content ◽  
Raw Materials ◽  
Frozen Storage ◽  
Storage Period ◽  
Raw Material ◽  
Minced Fish ◽  
Materials Used ◽  
And Storage

This study aim was to determine the effect of washing and raw materials on frozen storage on the quality of surimi and kamaboko from raw material of tilapia (Oreochromis sp). There were three types of raw materials used, namely minced fish, surimi, and surimi with addition of sorbitol, with three washing treatments and four weeks frozen storage period observed every week. The method used consisted of measurements of pH, water content, bite test, and folding test. Then the results obtained for the best kamaboko tilapia (Oreochromis sp) were obtained from fillet raw materials compared to the raw material of Minced fish and raw materials of Minced Fish + Sorbitol, with a frequency of washing once and frozen storage for 3 weeks.

scholarly journals Physiological quality and economic evaluation of treated cowpea seeds stored in different packaging

2020 ◽  
Vol 9 (7) ◽  
pp. e686974625
Author(s):  
Erick Almeida Andrade ◽  
José Eldo Costa ◽  
Rosilene de Morais da Silva ◽  
Julian Junio de Jesus Lacerda ◽  
Bruno Ettore Pavan ◽  
...  
Keyword(s):  
Chemical Treatment ◽  
Storage Period ◽  
Dry Mass ◽  
Hypocotyl Length ◽  
Seed Moisture Content ◽  
Chemical Treatments ◽  
Pet Bottles ◽  
Cowpea Seeds ◽  
Physiological Quality

The objective of this work was to evaluate the physiological quality of cowpea seeds and the economic viability of storage in different types of packaging and with different chemical treatments. Seeds were submitted to one of the following chemical treatments of active ingredients: fipronil; fipronil + pyraclostrobin + thiophanate methyl; and fludioxonil + metalaxyl. Seeds without chemical treatment constituted the control. Seeds were placed in permeable cotton bags, permeable raffia bags, semipermeable kraft paper bags, and impermeable PET bottles. The following were evaluated: seed moisture content; germination test; first germination count; germination speed index; hypocotyl length; root length and hypocotyl dry mass and root dry mass. Cost analysis of treatments was also performed. The physiological quality of cowpea seeds was more markedly reduced under storage conditions in permeable packages with fludioxonil + metalaxyl treatment. Impermeable packaging without chemical treatment decreased deterioration of physiological quality in cowpea seeds and is economically viable for a storage period of up to 90 days.

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