scholarly journals Investigation of the chemical composition of pumpkin pulp as a basis for soft drinks

Vestnik MGTU ◽  
2021 ◽  
Vol 24 (4) ◽  
pp. 441-449
Author(s):  
M. N. Shkolnikova ◽  
V. N. Abbazova
Keyword(s):  
Sugar Content ◽  
Meat Products ◽  
Climatic Conditions ◽  
Raw Material ◽  
Long Term Storage ◽  
Technological Potential ◽  
Wide Range ◽  
Snack Products ◽  
Term Storage

Pumpkin fruits ( Cucurbita spp.) have a number of advantages and high technological potential, thanks to almost universal cultivation in a wide range of agro-climatic conditions, the ability to long-term storage, the content of dietary fibers, pectin and other polysaccharides, carotenoids, polyphenolic substances, vitamins, which cause a wide range of physiological orientation. In the process of researching the composition of local cultivars of pumpkin and the world experience of using Cucurbita spp. in the composition of food products, the need to use this ingredient in beverage recipes has been substantiated. The content of dry substances in the pumpkin samples is from 8.18 % ("Gribovskaya") to 11.6 % ("Orange bush"). The maximum sugar content is distinguished by the varieties "Winter Sweet" (6.87 %) and "Orange Bush" (7.40 %). The content of BAS-antioxidants is (without visible difference depending on the growing region): carotenoids from 1.3 mg/100 g in "Gribovskaya" to 2.0 mg/100 g - "Orange bush"; ascorbic acid - 8.7 mg/100 g in "Rossiyanka" to 14.2 mg/100 g - "Orange bush". Today all parts of the pumpkin fruit are used: the bark is a raw material for the production of feed flour and a substrate for the cultivation of lactobacilli, the seeds are traditionally used to produce pumpkin oil and flour, the pulp of the fruit is a raw material for juice-containing products, purees, carotenoid-containing and polysaccharide extracts, pectin, concentrates of first and second dishes, snack products, pasta, bakery, confectionery and meat products, etc.

Modelling of Moisture Movement in Wood during Outdoor Storage

2001 ◽  
Vol 6 (2) ◽  
pp. 3-14 ◽  
Author(s):  
R. Baronas ◽  
F. Ivanauskas ◽  
I. Juodeikienė ◽  
A. Kajalavičius
Keyword(s):  
Experimental Data ◽  
Finite Difference ◽  
Climatic Conditions ◽  
Two Dimensional ◽  
Moisture Movement ◽  
Finite Difference Technique ◽  
Long Term Storage ◽  
Space Formulation ◽  
Term Storage

A model of moisture movement in wood is presented in this paper in a two-dimensional-in-space formulation. The finite-difference technique has been used in order to obtain the solution of the problem. The model was applied to predict the moisture content in sawn boards from pine during long term storage under outdoor climatic conditions. The satisfactory agreement between the numerical solution and experimental data was obtained.

Changes in the content of organic acids and inorganic anions in sugar beet during long-term storage

2016 ◽  
pp. 760-764 ◽  
Author(s):  
Maciej Wojtczak ◽  
Aneta Antczak-Chrobot ◽  
Paulina Miko ◽  
Magdalena Molska ◽  
Ilona Baszczyk ◽  
...  
Keyword(s):  
Sugar Beet ◽  
Storage Conditions ◽  
Denitrifying Bacteria ◽  
Raw Material ◽  
Storage Duration ◽  
Long Term Storage ◽  
Term Storage ◽  
Acetic Acids

Due to the prolongation of the period of the sugar campaign, it is necessary to optimize the storage conditions, so that changes in the quality of the raw material could be minimized. The aim of this study was to determine the effect of storage duration and temperature on changes in the composition of sugar beet. The study presents the changes in the content of glucose, fructose, raffinose, lactic and acetic acids, nitrates and nitrites as well as in the content of the total number of mesophilic bacteria, denitrifying bacteria and spores of denitrifying bacteria during storage under various conditions.

Long-term room temperature storage of DNA molecules

Biomics ◽  
2020 ◽  
Vol 12 (4) ◽  
pp. 552-563
Author(s):  
R.R. Garafutdinov ◽  
A.R. Sakhabutdinova ◽  
A.V. Chemeris
Keyword(s):  
Data Storage ◽  
Room Temperature ◽  
Biological Data ◽  
Dna Molecules ◽  
Freezing And Thawing ◽  
Long Term Storage ◽  
Wide Range ◽  
Frozen Solutions ◽  
Term Storage

The simplest and most common method of long-term storage of DNA samples at present is the storage of their frozen solutions, which, however, has a number of disadvantages, including the destruction of DNA molecules during freezing and thawing, as well as energy consumption and the likelihood of losing valuable samples in the event of possible accidents. In this regard, long-term storage of DNA samples at room temperature in a dried state is preferable, especially since an even greater increase in the number of stored DNA samples is planned due to the planned preservation of non-biological data in this molecule, which is recognized at the International Economic Forum 2019 among the 10 most important innovative technologies as “DNA Data Storage” of the near future of mankind. Such storage requires the exclusion of hydrolysis and oxidation of DNA molecules under the action of water and reactive oxygen species, which can be achieved by placing DNA in an inert anhydrous atmosphere, including in the presence of additional ingredients in the form of, for example, trehalose, imitating wildlife, since it is known that this simple disaccharide, capable of vitrification, protects a wide range of anhydrobiont organisms from adverse environmental conditions. Currently, there are a number of technologies that provide long-term storage of DNA at room temperature, including those available from commercial sources, but not all problems have yet been solved, which is reflected in this review article.

scholarly journals Determining the pectinesterase enzyme activity when storing table grape varieties depending on the degree of ripening

2021 ◽  
Vol 6 (11 (114)) ◽  
pp. 43-51
Author(s):  
İlhama Kazimova ◽  
Ahad Nabiyev ◽  
Elza Omarova
Keyword(s):  
Enzyme Activity ◽  
Statistical Processing ◽  
Table Grape ◽  
Raw Material ◽  
Table Grapes ◽  
Long Term Storage ◽  
Red Grape ◽  
Grape Varieties ◽  
Term Storage

Grapes are rich in easily digestible carbohydrates, mineral compounds, vitamins, phenolic compounds. and other vital components. It is known that fresh grapes can be used from September to December. To prolong the terms of consumption of this valuable raw material, the most appropriate varieties and conditions for storing grapes have been determined. White, pink, and red grape varieties were taken as the object of research. The changes in the activity of the pectinesterase enzyme were determined depending on the degree of ripening of table grape varieties, the change in the pectinesterase enzyme during storage of table grape varieties in various variants was investigated. Statistical processing and calculation of variations in the indicators of changes in the activity of the enzyme pectinesterase were performed, depending on the degree of ripening of grapes of the Shamakhi Marandi variety. During the study, the pectinesterase enzyme remained more stable in mature varieties. This means that in ripe table grape varieties, the absorption of nutrients in the respiratory process is significantly slowed down. However, as they mature, the activity of the pectinesterase enzyme gradually increases. Therefore, for long-term storage in refrigerated chambers, fully ripe varieties of table grapes were used; to this end, grapes of the white Ganja table variety, the pink Shamakhi Marandi variety, and the red Black Asma variety are more suitable. The comparison of the investigated variants showed that table grape varieties, when stored in a refrigerated chamber in a controlled atmosphere, at 3–4 % CO2 and 2–3 % O2, retain better quality than other variants. When storing table grape varieties of various variants in the refrigerator, the enzyme activity decreases but is not completely suppressed.

scholarly journals The influence of long-term storage in liquid nitrogen on survival and pathogenicity of Phytophthora Infestans isolates

2012 ◽  
Vol 52 (4) ◽  
pp. 479-485 ◽  
Author(s):  
Sylwester Sobkowiak ◽  
Hanna Zarzycka ◽  
Jadwiga Śliwka
Keyword(s):  
Liquid Nitrogen ◽  
Virulence Factors ◽  
Initial Assessment ◽  
Long Term Storage ◽  
Paraffin Oil ◽  
Wide Range ◽  
The Mean ◽  
Nitrogen Treatment ◽  
Term Storage

Abstract A set of 14 aggressive Phythophthora infestans (Mont.) de Bary isolates with a wide range of virulence, was stored for eight years (2002-2010) in liquid nitrogen at -196°C (209 samples) and under paraffin oil at 7°C (70 test tubes). The survival rate of samples stored in liquid nitrogen was scored as 88%, 45 days after thawing. The revived isolates were passaged through potato tissues four times and tested for virulence on a set of 11 Black’s differentials. The mean number of virulence factors per isolate, of these P. infestans isolates evaluated before storage, was 7.4. The isolates stored in liquid nitrogen and under paraffin oil and passaged four times through potato tissues showed a similar mean number of virulence factors per isolate, 7.3 and 6.9, respectively. Isolates stored under paraffin oil showed no expression of factor avr5, but expression of this factor occurred in six isolates after liquid nitrogen treatment. The initial expression of this factor occurred in four isolates. Before storage, the average aggressiveness of the tested isolates was assessed as 1.7, on a 1-9 scale, where 1 means the most aggressive. After storage and after four subsequent passages through potato tissues, the mean aggressiveness of isolates stored in liquid nitrogen and under paraffin oil reached the level of 1.5 and 2.1, respectively. The mean aggressiveness was not significantly different from the level of initial assessment.

scholarly journals UK Government Web Continuity: Persisting Access through Aligning Infrastructures

2009 ◽  
Vol 4 (1) ◽  
pp. 107-124 ◽  
Author(s):  
Amanda Spencer ◽  
John Sheridan ◽  
David Thomas ◽  
David Pullinger
Keyword(s):  
Building Blocks ◽  
Access To Information ◽  
Parliamentary Debates ◽  
Long Term Storage ◽  
Wide Range ◽  
The Government ◽  
The Uk ◽  
Term Storage ◽  
The Web

Government's use of the Web in the UK is prolific and a wide range of services are now available though this channel. The government set out to address the problem that links from Hansard (the transcripts of Parliamentary debates) were not maintained over time and that therefore there was need for some long-term storage and stewardship of information, including maintaining access. Further investigation revealed that linking was key, not only in maintaining access to information, but also to the discovery of information. This resulted in a project that affects the entire  government Web estate, with a solution leveraging the basic building blocks of the Internet (DNS) and the Web (HTTP and URIs) in a pragmatic way, to ensure that an infrastructure is in place to provide access to important information both now and in the future.

scholarly journals Technological qualities of root crops and economic efficiency of growing sugar beet hybrids by the KWS company in the conditions of "Rasavske" Ltd. of Kaharlyk district, Kiev region

2018 ◽  
pp. 34-39
Author(s):  
A. Gorodetskiy ◽  
M. Grabovskiy
Keyword(s):  
Sugar Beet ◽  
Economic Efficiency ◽  
Sugar Content ◽  
Prolonged Storage ◽  
Forest Steppe ◽  
Juice Quality ◽  
Long Term Storage ◽  
Root Crops ◽  
Term Storage

The paper deals with the results of research on the study of the technological traits changes in foreign hybrids root crops of the KWS company sugar beet enterprises under the influence of long-term storage and their economic efficiency. The conducted researches are especially relevant due to insufficiently studied issues of changes in the technological traits of the root crops of the newest hybrids during their storage in the crutches on the field or at the sugar factory. Estimation of new hybrids of sugar beet by regions of the Forest-steppe allows to predict the genetically determined degree of their plasticity and stability both in the yield and the quality. Hybrids with higher resistance to extreme temperatures are especially valuable. The researches were carried out during 2014–2015 at the "Rasavske" Ltd. of Kaharlyk district, Kyiv region. The sugar content in the root crops increased from 1.6% in the Alyona hybrid to 5.9 % in the Daria hybrid and 6.1 % in the Coryda hybrid, due to the loss of moisture during their prolonged storage. The content of soluble dry matter in the root crops increased from 1.7 % in the Alyona hybrid to 7.7 % in the Coryda hybrid for the same reason. The conducted calculations of cell juice quality showed that long-term storage resulted in the highest growth of this indicator by 8.2 % in the Cesaria hybrid and by 7.5 % in the Acatsia hybrid. In the Alyona hybrid, the growth rate of cell juice quality was only 0.8 %, while the Corida hybrid had the quality of the previous level. In the Olesya hybrid, this indicator decreased by 1.8 % compared with the previous determination period (October 10). The costs of growing root crops ranged from 17,859 to 20,726 UAH/ha. The highest profit was 17435 UAH/ha and the profitability level was 86.3 % for the Alyona hybrid, while the lowest economic efficiency figures were for the profit of 10,201 UAH/ha and the profitability level of 53.7 % in the Carmelite hybrid. The highest rates of the technological traits of root crops during the long-term storage of sugar beet were determined in the Alyona hybrid. The highest yield of root crops was in the Daria hybrid – 79.8 t/ha. According to the indicators of economic efficiency the Alona hybrid was the best in terms of profit (17,435 UAH/ha) and the profitability level of 86.3 %. Key words: sugar beet, hybrids, productivity, yield, sugar content, technological traits, profit, profitability level.

Effects of field treatments on processing quality of Record and Pentland Dell potatoes during storage

1993 ◽  
Vol 120 (3) ◽  
pp. 331-345 ◽  
Author(s):  
M. C. Hogge ◽  
M. A. Stalham ◽  
E. J. Allen
Keyword(s):  
Sugar Content ◽  
Physiological Age ◽  
Processing Quality ◽  
Fry Colour ◽  
Agronomic Practices ◽  
Long Term Storage ◽  
Processed Potatoes ◽  
Term Storage

SUMMARYPrevious research has suggested that fry colour of processed potatoes is inversely correlated with tuber reducing sugar content, and agronomic practice should therefore be tailored to minimize amounts of tuber sugars at harvest and during storage as a means of maximizing processing quality. A total of 30 experiments from three sites in England from 1985 to 1988 examined this hypothesis for two cultivars using a wider range of husbandry than that used in practice and long periods of storage. No tuber sugar value was sufficiently well correlated with fry colour for the relationship to be interpreted as causal and of use predictively, irrespective of whether it was measured early in growth, at harvest or at the time of processing. Fry colour at harvest was not correlated with fry colour after storage. No agronomic practice (variables used were physiological age, date of planting, irrigation or date of harvest) consistently caused fry colours to be darker than the acceptable colour limit, whether at harvest or after long term storage. Crops producing unacceptable fry colours early in storage generally improved to produce acceptable fry colours after long term storage. Agronomic practices within the range normally found in commercial production are therefore considered to have little effect on long-term processing quality, although harvesting, handling and transport operations were not investigated.

Co-ensiling as a new technique for long-term storage of agro-industrial waste with low sugar content prior to anaerobic digestion

2018 ◽  
Vol 71 ◽  
pp. 147-155 ◽  
Author(s):  
Marie-Lou Hillion ◽  
Roman Moscoviz ◽  
Eric Trably ◽  
Yoann Leblanc ◽  
Nicolas Bernet ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Industrial Waste ◽  
Sugar Content ◽  
New Technique ◽  
Long Term Storage ◽  
A New Technique ◽  
Term Storage

A Diagnostic Guide for Phytophthora capsici infecting vegetable crops

2021 ◽  
Author(s):  
Camilo H. Parada-Rojas ◽  
Leah Granke ◽  
Rachel Naegele ◽  
Zachariah Hansen ◽  
Mary Hausbeck ◽  
...  
Keyword(s):  
Molecular Identification ◽  
Phytophthora Capsici ◽  
Vegetable Crops ◽  
Disease Symptoms ◽  
Plant Parts ◽  
Long Term Storage ◽  
Wide Range ◽  
Oomycete Pathogen ◽  
Term Storage

Phytophthora capsici is an oomycete pathogen causing economically important diseases in a wide range of hosts worldwide including cucurbitaceous, solanaceous, and fabaceous crops. All plant parts, crown and roots, or only the fruit may be affected depending on the host, and symptoms can range from wilting to rot and plant death. Considered a hemibiotroph, P. capsici can be cultured in artificial media and maintained in long term storage. In this diagnostic guide, we describe methods to identify P. capsici infection based on disease symptoms and pathogen signs. We also outline methods for molecular identification, pathogen isolation, storage of single-sporangium cultures, and pathogenicity testing.

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