Effect of Organic Acids on Germination, Growth and Ascorbic Acid Content of Wheat Seedlings

Nature ◽  
1938 ◽  
Vol 142 (3608) ◽  
pp. 1119-1119 ◽  
Author(s):  
EMERY GAL
Keyword(s):  
Ascorbic Acid ◽  
Organic Acids ◽  
Acid Content ◽  
Ascorbic Acid Content ◽  
Wheat Seedlings

BIOLOGICALLY ACTIVE COMPOUNDS CONTENE ASSESSMENT IN CINNAMON ROSE (ROSA MAJALIS HERRM.) FRUITS FROM THE KUZBASS FLORA

2021 ◽  
pp. 47-51
Author(s):  
Egorova I.N. ◽  
Maltseva E.M. ◽  
Bolshakov V.V.
Keyword(s):  
Ascorbic Acid ◽  
Organic Acids ◽  
Acid Content ◽  
Ascorbic Acid Content ◽  
Biologically Active Compounds ◽  
Biologically Active ◽  
Raw Material ◽  
Material Base ◽  
Active Compounds ◽  
The Rose

Cinnamon rose (Rosa majalis Herrm.) is the one of two species of rose hips growing in the Kemerovo region. The rose hips pharmacopoeial raw material are fruits which used as a vitamin agent. The rose hips pharmacological effect is due to the rich complex of biologically active substances contained in its fruits. Cinnamon rose belongs to the high-vitamin species. Ascorbic acid content can reach 4-14% in it. Due to the high content of organic acids and polyphenols, rose hips and preparations based on it have a fairly strong antioxidant effect. They are often used to prevent vitamin C deficiency, which is especially important for the region local population living in a territory with a harsh continental climate, characterized by long cold winters. Therefore, the rose hips from Kuzbass flora further study is an urgent goal to expand the medicinal plant raw material base and to provide the population of the region with a vitamin product. The study was aimed at assessing some biologically active compounds content (tannins, organic acids, ascorbic acid) in the cinnamon rose fruits growing in the region. Ascorbic acid quantitative determination was carried out by HPLC, organic acids and tannins - by titration. The analysis showed that the ascorbic acid content in the raw materials collected in the Topkinsky district of the region reaches 0,450±0,003 %, organic acids - 3,728±0,051 %, which corresponds to the PI requirements for this type of raw material. Tannins quantitative content reaches 5.76 %. Obtained experimental data comparative analysis with the literature confirmed the fact that one of the main factors affecting the rose hips vitamin content is the geographical factor.

ASSOCIATION BETWEEN ASCORBIC ACID CONCENTRATION AND COLD HARDENING IN YOUNG WINTER WHEAT SEEDLINGS

1961 ◽  
Vol 39 (3) ◽  
pp. 503-512 ◽  
Author(s):  
J. E. Andrews ◽  
D. W. A. Roberts
Keyword(s):  
Ascorbic Acid ◽  
Winter Wheat ◽  
Acid Content ◽  
Cold Hardiness ◽  
Ascorbic Acid Content ◽  
Wheat Varieties ◽  
Wheat Seedlings ◽  
Stage Of Development ◽  
Cold Hardy ◽  
Winter Wheat Varieties

The ascorbic acid content of winter wheat varieties, germinated in the dark at various temperatures on the surface of moist vermiculite, was much higher at a hardening temperature of 1.5 °C than at higher temperatures of 5°, 10°, or 20 °C. There were no differences between the ascorbic acid contents of wheat grown at the three higher temperatures. Ascorbic acid content was dependent on the stage of development at all temperatures. At 1.5 °C, the ascorbic acid content increased during the first 6 weeks of growth (shoots about 15 mm) and then decreased rapidly. This variation in ascorbic acid content was closely associated with the increase and decrease in cold hardiness of wheat grown under similar conditions.Ascorbic acid content was highest in shoots, intermediate in roots, and lowest in the endosperm of wheat grown for 6 weeks at 1.5 °C.At hardening temperatures (1.5° and 3 °C) the more cold hardy winter wheat varieties had higher contents of ascorbic acid. At higher temperatures the differences between varieties were small. The ranking of varieties by ascorbic acid content could be influenced by relative stages of growth.Artificial cold hardiness was imparted to winter wheat seedlings by feeding them aqueous ascorbic acid solutions of adequate concentration. The ascorbic acid content of leaves required for artificial hardening appeared to be similar to that accumulated in sprouts hardened fully by growth at low temperature.

Analysis of ascorbic acid content in various fruits and vegetables by spectrofluorimetric methods

Planta Medica ◽  
2011 ◽  
Vol 77 (12) ◽  
Author(s):  
A Haskovic ◽  
A Copra Janicijevic ◽  
A Topcagic ◽  
L Klepo ◽  
A Kapur ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Acid Content ◽  
Fruits And Vegetables ◽  
Ascorbic Acid Content

scholarly journals Silicon attenuates calcium deficiency by increasing ascorbic acid content, growth and quality of cabbage leaves

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Dalila Lopes da Silva ◽  
Renato de Mello Prado ◽  
Luis Felipe Lata Tenesaca ◽  
José Lucas Farias da Silva ◽  
Ben-Hur Mattiuz
Keyword(s):  
Ascorbic Acid ◽  
Nutrient Solution ◽  
Acid Content ◽  
Dry Matter ◽  
Ascorbic Acid Content ◽  
Calcium Deficiency ◽  
Ca Deficiency ◽  
Leaf Water Loss ◽  
Nutrient Solutions

AbstractCalcium (Ca) deficiency in cabbage plants induces oxidative damage, hampering growth and decreasing quality, however, it is hypothesized that silicon (Si) added to the nutrient solution may alleviate crop losses. Therefore, this study aims at evaluating whether silicon supplied in the nutrient solution reduces, in fact, the calcium deficiency effects on cabbage plants. In a greenhouse, cabbage plants were grown using nutrient solutions with Ca sufficiency and Ca deficiency (5 mM) without and with added silicon (2.5 mM), arranged as a 2 × 2 factorial in randomized blocks, with five replications. At 91 days after transplanting, the plants were harvested for biological evaluations. In the treatment without added Si, Ca deficiency promoted oxidative stress, low antioxidant content, decreased dry matter, and lower quality leaf. On the other hand, added Si attenuated Ca deficiency in cabbage by decreasing cell extravasation while increasing both ascorbic acid content and fresh and dry matter, providing firmer leaves due to diminished leaf water loss after harvesting. We highlighted the agronomic importance of Si added to the nutrient solution, especially in crops at risk of Ca deficiency.

COMPARISON OF ASCORBIC ACID CONTENT IN IMPORTED TOMATOES AND IN CULTIVARS GROWN IN NOVA SCOTIA

1987 ◽  
Vol 67 (1) ◽  
pp. 331-335
Author(s):  
HAK-YOON JU ◽  
W. JOHN MULLIN
Keyword(s):  
Ascorbic Acid ◽  
Nova Scotia ◽  
Vitamin C ◽  
Acid Content ◽  
Ascorbic Acid Content ◽  
Fresh Weight ◽  
Atlantic Region ◽  
Significant Difference ◽  
Cluster Location ◽  
Greenhouse Tomatoes

The ascorbic acid (vitamin C) content of fresh imported field tomatoes and Nova Scotia greenhouse and field tomatoes was determined on a bi-weekly basis during the period of availability of each type of tomato to the Nova Scotia consumer in 1984. The average ascorbic acid contents of imported and Nova Scotia field and greenhouse tomatoes were 13.3, 16.7 and 17.7 mg 100 g−1 fresh weight, respectively. A study of nine recommended or promising field tomatoes for the Atlantic region showed significant differences in ascorbic acid content among the cultivars. The cultivar Quick Pick had the highest ascorbic acid content of 22.5 ± 1.5 mg 100 g−1, the cultivar Campbell 18 had the lowest content, 12.0 ± 2.9 mg 100 g−1. In Dombito greenhouse tomatoes the stage of maturity and the effect of cluster location were tested against ascorbic acid content. The lowest ascorbic acid content of 9.1 ± 1.0 mg 100 g−1 was found with the small green tomatoes while others from mature green to overripe contained 14.0–16.7 mg 100 g−1. Tomatoes from different cluster locations showed no significant difference in ascorbic acid content.Key words: Vitamin C, L-ascorbic acid, tomatoes

scholarly journals Antioxidant Potential in Different Parts and Callus ofGynura procumbensand Different Parts ofGynura bicolor

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Vijendren Krishnan ◽  
Syahida Ahmad ◽  
Maziah Mahmood
Keyword(s):  
Ascorbic Acid ◽  
Acid Content ◽  
Phenolic Content ◽  
Reducing Power ◽  
Ascorbic Acid Content ◽  
Total Phenolic ◽  
Total Flavonoid Content ◽  
Dpph Radical ◽  
Flavonoid Content ◽  
Different Parts

Plants from Gynura family was used in this study, namely,Gynura procumbensandGynura bicolor.Gynura procumbensis well known for its various medicinal properties such as antihyperglycaemic, antihyperlipidaemic, and antiulcerogenic; meanwhile,G. bicolorremains unexploited. Several nonenzymatic antioxidants methods were utilized to study the antioxidant capacity, which include ferric reducing antioxidant power (FRAP), 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging assay, total flavonoid content, total phenolic content, and ascorbic acid content determination. DPPH assay revealsG. procumbensshoot as the lowest (66.885%) andG. procumbensroot as the highest (93.499%) DPPH radical inhibitor. In FRAP assay, reducing power was not detected inG. procumbensleaf callus (0.000 TEAC mg/g FW) wherebyG. procumbensroot exhibits the highest (1.103 TEAC mg/g FW) ferric reducing power. Total phenolic content and total flavonoid content exhibited similar trend for both the intact plants analysed. In all antioxidant assays,G. procumbenscallus culture exhibits very low antioxidant activity. However,G. procumbensroot exhibited highest phenolic content, flavonoid content, and ascorbic acid content with 4.957 TEAC mg/g FW, 543.529 QEµg/g FW, and 54.723 µg/g FW, respectively. This study reveals thatG. procumbensroot extract is a good source of natural antioxidant.

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