scholarly journals INVESTIGATION OF CARROT FOOD VALUE DEPENDING ON SORT PECULIARITIES AND ITS CHANGE AT STORAGE

2021 ◽  
pp. 17-24
Author(s):  
Ludmila Pusik ◽  
Vlаdimir Pusik ◽  
Veronika Bondarenko ◽  
Ludmila Gaevaya ◽  
Natalja Kyruchina ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Chemical Composition ◽  
Initial Level ◽  
Content Increase ◽  
Value Change ◽  
Storage Losses ◽  
Long Time ◽  
Initial Content ◽  
Food Value ◽  
Dry Substance

A food value of carrot roots is determined by a content of such chemical composition components as dry substance, ascorbic acid, carotene and other. The carrot value is also determined by its ability to be stored for a long time. The research aim was to study a food value change of different carrot sorts at storage open in boxes. The research gives an ability to search a carrot sort, suitable for long storage, and also to search arrangements for better preservation of carrot nutritiousness at storage. It has been established, that the dynamics and intensity of losses of the roots’ food value depends on sort peculiarities. Thus, during 7.5 months of storage sorts Daryna, Shantane KL and Nant Kharkiv lost from 0.92 to 4.12 % of dry substance. The content of total sugar decreased by 0.16 and 0.77 % of its initial content in sorts Daryna and Nant Kharkiv, whereas Shantane demonstrated the content increase at the end of storage by 0.29 %. The same tendency was observed also by changes of the content of monosaccharides and saccharose. The content of ascorbic acid and carotene during storage varied from increase to decrease. At the end of storage losses of ascorbic acid and carotene were 1.43–1.93 and 3.42–4.26 mg/100 g respectively. The content of nitrates at the end of storage in Daryna roots remained at the initial level – 202 mg/kg of the humid mass, in Shantane and Nant Kharkiv it decreased by 18 and 26 % respectively. At that it must be noted, that the processes of nutritiousness changes were more intensive in Daryna and Nant Kharkiv roots. In Shantane the carrot roots content changes of chemical composition components were slower.

Effect of nitrogen fertilization on yield, storage losses and chemical composition of winter cabbage

1991 ◽  
Vol 71 (3) ◽  
pp. 943-946 ◽  
Author(s):  
S. Freyman ◽  
P. M. Toivonen ◽  
W. C. Lin ◽  
P. W. Perrin ◽  
J. W. Hall
Keyword(s):  
Ascorbic Acid ◽  
Chemical Composition ◽  
Key Words ◽  
Nitrogen Fertilization ◽  
N Fertilization ◽  
Nitrogen Rate ◽  
N Application ◽  
Storage Losses ◽  
White Cabbage ◽  
Brassica Oleracea L

Increasing rates of field nitrogen (N) application (0, 100, 200, 300, 400 and 500 kg N ha−1) resulted in markedly higher yields of winter white cabbage (Brassica oleracea L. var. capitata 'Bartolo') due to larger head size. Glucose and fructose contents increased with increased nitrogen. In contrast, ascorbic acid and sucrose contents declined slightly with increased nitrogen. Nitrogen rate had little effect on storage losses. The results indicated that increased N fertilization provided overall benefit to cabbage production. Key words: Cabbage, nitrogen fertilization, storage losses, yield

scholarly journals STUDY OF THE INFLUENCE OF THE RIPENESS DEGREE OF PARSNIP ROOTS AND STORAGE METHOD ON THEIR PRESERVATION

2019 ◽  
Vol 1 ◽  
pp. 12-20
Author(s):  
Ludmila Pusik ◽  
Vlаdimir Pusik ◽  
Nina Lyubymova ◽  
Veronika Bondarenko ◽  
Artur Rozhkov ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Chemical Composition ◽  
Vitamin C ◽  
Reducing Sugars ◽  
Vegetation Period ◽  
Polyethylene Film ◽  
Strong Connection ◽  
Nitrates Content ◽  
Period Duration ◽  
Dry Substance

Sowing parsnip is recommended to be harvested in the stage of technical ripeness that takes place in 120–150 days after sprouts. A ripeness degree cannot be determined by a root size, because in this case planting conditions and agrotechnique play an important role. The aim of the research was to analyze the influence of a vegetation period duration of different sorts of sowing parsnip on formation of chemical composition components and roots preservation to determine the dependence between the content of dry soluble substances and one of dry substances, sugars, saccharose, reducing sugars, ascorbic acid. The research gives a possibility to get roots with the maximal content of chemical composition components and long storage period. There has been studied the influence of a vegetation period duration of different sorts of sowing parsnip on formation of chemical composition components and roots preservation. The dependence between the content of dry soluble substances and one of dry substances, sugars, saccharose, reducing sugars, ascorbic acid has been determined. The research has been conducted with parsnip roots of sowing sort Petrik, Student, Boris. There has been studied the influence of a ripeness degree (vegetation period duration) on a quality and preservation of parsnip roots. Parsnip roots of the sowing sorts Student and Boris are characterized by the most content of the dry substance 27,1–25,4 %, and content of the total sugar 5,7–5,4 %, high content of vitamin С 10,2–10,1 mg/100 g. It has been established, that the studied sorts are not inclined to nitrates accumulation, their content varies from 60 to 80 mg/kg and is lower than the maximally permitted level (MPL 250 mg/kg). There has been established the direct strong connection between the content of the dry substance and sugars content (r=0,98), nitrates content (r=0,80) and the middle content with the testing mark (r=–0,54) and vitamin С (r=0,57). The dry soluble substance content has the direct strong connection with the sugars content (r=0,99), nitrates content (r=0,78) and middle connection with the content of vitamin С (r=0,46) and reverse middle connection with the testing mark (r=–0,52). The reverse middle connection exists between the sugars content and the testing mark (r=–0,52) and the direct strong connection with nitrates content (r=0,84), middle connection with the content of vitamin C (r=0,48). At storage of roots the loss of the mass of dry substances is from 11,5 % at storage in an open box to 6,2 – in a polyethylene film. The most changes take place in saccharose and monosaccharides, 36,6 and 33,0 % respectively. The content of vitamin C decreases by 30 % at storage in an open box and by 10 % in a polyethylene film. The vegetation period duration as 150 days is characterized by the lower sugars content, but at that the ratio saccharose: monosacharides – the most. There has been offered the method of determining the ripeness degree of parsnip roots by the saccharose content. At the technical ripeness the amount of saccharose is 72–75 % of the total amount of sugars. The optimal ripeness is characterized by deceleration of growing processes, decrease of saccharose accumulation rates, the most ratio of the roots mass to the one of leaves and saccharose to monosugars. The method of roots storage with p. e. film decreases losses of nutrients of roots and increases the storage duration.

scholarly journals THE CHEMICAL COMPOSITION OF THE BERRIES OF SPECIES AND INTERSPECIFIC HYBRIDS OF RED CUR-RANT IN CULTURE

2019 ◽  
pp. 85-93
Author(s):  
Aleksey Borisovich Gorbunov ◽  
Tat'yana Abdulkhaimovna Kukushkina
Keyword(s):  
Ascorbic Acid ◽  
Chemical Composition ◽  
Interspecific Hybrids ◽  
Biochemical Study ◽  
Biologically Active ◽  
High Yield ◽  
Berry Fruits ◽  
Active Substances ◽  
Red Currant ◽  
Dry Substance

Red currant is a valuable food and medicinal plant widely used in industrial and amateur gardening. The aim of this article is a summary of results of a multi-year research of the chemical composition of fruits of red currant wild-growing species and natural interspecific hybrids of different geographical origin and assessment of a possibility of use of the selections to produce interspecific hybrids. Biochemical study of dry substance, ascorbic acid, sugars, acids, anthocyans, catechins, pectins and protopectins in red currant berries was carried out. The analyses of the chemical composition were performed by the universally accepted procedures. The levels of variability of 8 biochemical characters of red berry fruits depending on conditions of a year were established. It was shown that the most stable biochemical character was content of dry substance in berries and the most variable one – content of catechins. More ascorbic acid accumulates in berries of Ribes atropurpureum from the Salair Ridge in comparison with the amount in berries of R. atropurpureum from the Altai Mountains. By the complex of biochemical characters of prime interest are R. atropurpureum and hybrid R. atropurpureum × R. altissimum, and by the content of dry substance, sugars and catechins – hybrid R. atropurpureum × R. vulgare. The selections are a source of 1-5 outstanding biochemical characters and promising for the use in breeding. The interspecific hybrids of red currant obtained in CSBG by the use of selections testify to the possibility of production of high yield, large-fruited cultivars with a high content of biologically active substances in berries.

scholarly journals CHANGES IN THE CHEMICAL COMPOSITION OF CRANBERRY BERRIES LARGE-FRUITED DURING STORAGE

2019 ◽  
pp. 153-159 ◽  
Author(s):  
Aleksey Borisovich Gorbunov ◽  
Tat'yana Abdulkhailovna Kukushkina
Keyword(s):  
Ascorbic Acid ◽  
Chemical Composition ◽  
Biochemical Study ◽  
West Siberia ◽  
High Quality ◽  
Fruit Composition ◽  
Biochemical Indices ◽  
To Receive ◽  
Dry Substance ◽  
Long Storage

Large cranberry is a valuable food and medicinal plant. The early cultivar «Bergman» and mid-season cultivars «Ben Lear» and «Pilgrim», the most promising for southern West Siberia, ripen rather late – in the second-third decades of September. The aim of the work was study of the chemical composition of large cranberry berries and its dynamics during long storage. In this regard, biochemical study of dry substance, ascorbic acid, sugars, acids, anthocyans, catechins, pectins and protopectins of berries promising cultivars was conducted. The chemical composition was analyzed by conventional methods. It was established that the early cultivar «Bergman» compared to mid-season cultivars «Ben Lear» and «Pilgrim» accumulated more ascorbic acid and anthocyans. In the course of long (5–6 months) storage of fruits in the refrigerator the decrease in the number of sugars, ascorbic acid and pectins (partially) took place in all cultivars, but the content of dry substance, acids, protopectins (1.2–2.9 times) and anthocyans (1.7–5.0 times) increased. Therefore, it is possible to after-ripen unripe cranberry berries. On accumulation of anthocyans and protopectins Siberian samples are close to or exceed Belorussian ones which form a qualitative fruit composition in more favourable conditions. To receive high-quality by biochemical indices production, it is necessary to grow early large cranberry cultivars in southern West Siberia, to harvest berries in the late second-third decades of September when berries acquire natural color and to store fresh berries in the refrigerator for not more than half a year.

scholarly journals DYNAMICS OF THE CHEMICAL COMPOSITION OF BERRIES OF INTRODUCED CULTIVARS AND FORMS OF CRANBERRIES IN THE CONDITIONS OF CENTRAL SIBERIAN BOTANICAL GARDEN SB RAS

2021 ◽  
pp. 241-249
Author(s):  
Aleksey Borisovich Gorbunov ◽  
Tat'yana Abdulkhailovna Kukushkina
Keyword(s):  
Ascorbic Acid ◽  
Chemical Composition ◽  
Acid Content ◽  
Western Siberia ◽  
Ascorbic Acid Content ◽  
Titratable Acidity ◽  
Botanical Garden ◽  
The Difference ◽  
Biochemical Research ◽  
Dry Substance

The aim of the work was study of the variability of fruit chemical composition of O. palustris (2 samples) and O. macrocarpus (6 samples) cultivars and forms introduced in CSBG depending on the conditions of the year. Biochemical research of the content of dry substance, ascorbic acid, sugars, titratable acidity, anthocyanins, pectins, protopectins and catechins in berries of these samples were conducted. The chemical composition was analyzed by conventional methods. O. palustris surpasses O. macrocarpus in the content of ascorbic acid and titratable acidity, but is inferior to it in the accumulation of anthocyanins, pectins and protopectins. In comparison with the studied samples of both species, the native O. palustris accumulates the greatest amount of ascorbic acid and the least amount of sugars. The early cultivars of O. macrocarpus exceeds the mid-season cultivars and are close to late-maturing ones in terms of ascorbic acid content. The difference in the accumulation of other ingredients in the fruits of both O. palustris and O. macrocarpus is not statistically significant. According to the chemical composition of berries, O. palustris and O. macrocarpus are promising for introduction in the South of Western Siberia.

scholarly journals Effect of paclobutrazol on fruit quality and physio-chemical composition of Mango cvs. Dashehari, Langra, Chausa and Fazri

2019 ◽  
pp. 80-88
Author(s):  
Ashok Kumar ◽  
Singh CP ◽  
Sant Ram
Keyword(s):  
Ascorbic Acid ◽  
Chemical Composition ◽  
Fruit Quality ◽  
Reducing Sugar ◽  
Soil Application ◽  
Higher Doses

Soil application of Paclobutrazol (applied as a cultar of 0.5 g/ meter canopy diameter and 1.0 g/meter canopy diameter) evaluated as a method is slightly increased TSS, Acidity tolal sugar, non-reducing sugar, non-reducing sugar, ?-carotene, Ascorbic Acid compare to control. However, the treatment is better in higher doses (1gm/meter canopy diameter) compare lower doses (O.5 gm / meter canopy diameter). The chemical name Poclobutrazol [(2 RS, 3RS)-1-(4-chlorophenly)-4, 4- dimethyl -2-[1,2,4-trizol -1-y)] pentan-3-ethanol.

Complexity of Fresh Hevea Latex

1948 ◽  
Vol 21 (3) ◽  
pp. 749-751
Author(s):  
L. N. S. Homans ◽  
J. W. van Dalfsen ◽  
G. E. van Gils
Keyword(s):  
Chemical Composition ◽  
Common Knowledge ◽  
Acetone Extract ◽  
General Interest ◽  
Japanese Occupation ◽  
High Protein Content ◽  
Bright Yellow ◽  
Yellow Orange ◽  
Long Time ◽  
Netherlands Indies

Abstract Although under difficult conditions, the work at the Netherlands Indies Rubber Research Institute at Buitenzorg (Java) was continued during the Japanese occupation. Since it will be a long time before the accumulated results of the years 1942–45 can be published in detail, some points of general interest are reported here. It is common knowledge that, on addition of small amounts of salts of bior polyvalent cations to fresh latex, partial coagulation follows. The yellow colored coagulum generally contains 10–30 per cent of the rubber and after drying gives a yellow rubber, rich in proteins, and having a high acetone extract. The high acetone extract and the color are produced by the yellow particles, first observed by Frey-Wyssling, which, although generally called “resin particles”, contain mainly lipoids. What, however, is the reason for the high protein content? In 1941 it was observed by one of us (L.N.S.H.) that when fresh latex is centrifuged in tubes, a separation occurs into a heavy yellow fraction, taking up a tenth to a third of the total volume, and a lighter white fraction. The yellow fraction is more viscous and often in itself consists of various layers, bright yellow, gray yellow, orange, or even green. Much information was obtained by studying separately the chemical composition, colloid-chemical and enzymological properties of these fractions.

CHEMICAL COMPOSITION AND SOURCE FINGERPRINTING OF DEPOSITIONAL OIL FROM THE KUWAIT OIL FIRES

1993 ◽  
Vol 1993 (1) ◽  
pp. 407-413 ◽  
Author(s):  
Charles B. Henry ◽  
Edward B. Overton
Keyword(s):  
Chemical Composition ◽  
Arabian Gulf ◽  
Fold Increase ◽  
Oil Field ◽  
Oil Sand ◽  
Oil Residue ◽  
Long Time ◽  
The Mean ◽  
Mean Concentration ◽  
Oil Field Fires

ABSTRACT Depositional oil and soot derived from the 1991 Kuwait oil field fires produced huge tar mats in the desert. The concentration of oil in the upper 5 cm of the desert surface ranged from 1.16 to 8.92 percent oil by weight as determined by TPH analysis over a 10 km transect in southern Kuwait. The mean concentration of asphaltenes in the tar mat samples was estimated at 62 percent; a greater than 17-fold increase in concentration over unweathered Kuwait crude oil. The remaining oil forming these tar mats is believed to be derived from petroleum that escaped combustion within the well fires. Results from GC/MS analyses characterize the depositional oil as being significantly altered by evaporative weathering. We suspect that evaporation of the depositional oil will continue, further consolidating the weathered oil, sand, and soot into asphalt-like zones which will remain for a very long time as features of the Kuwait desert. Significant quantities of oil residue from the fires also fell into the Arabian Gulf, contributing to what may be the largest man-made oil spill.

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