scholarly journals Estimation of Ascorbic Acid Content in Prosopis cineraria (L.) Druce Cultivar K1

2012 ◽  
Vol 22 (1) ◽  
pp. 27-32 ◽  
Author(s):  
Ruchi Nag ◽  
Arjit Chaturvedi ◽  
Amit Sharma ◽  
Shashi Bidawat ◽  
L. K. Pareek ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Acid Content ◽  
Growth Index ◽  
Ascorbic Acid Content ◽  
Time Interval ◽  
Tissue Cultures ◽  
Growth Indices ◽  
Prosopis Cineraria ◽  
Plant Parts ◽  
Callus Tissues

The callus tissues of Prosopis cineraria (L.) Druce established and maintained for a period of eight months on MS supplemented with 2 mg/l, 2, 4-D and its plant parts were used for estimation of ascorbic acid. The tissue thus grown was transferred to fresh MS and MS singly supplemented with 0.5, 1, 1.5 and 2% of glucose. The growth indices and ascorbic acid contents in tissues were determined at time interval of two, four, six and eight weeks. Six weeks old tissue cultures showed an increase in the amount of endogenous ascorbic acid as well as growth indices in all the samples. The cultures grown on MS supplemented with 1.5% of glucose showed maximum ascorbic acid content (174.23 mg/100 gdw) and growth index (19.68). Tissues reared with different concentration of glucose showed remarkably high content of ascorbic acid content as compared to control and plant parts. Plant Tissue Cult. & Biotech. 22(1): 27-32, 2012 (June) DOI: http://dx.doi.org/10.3329/ptcb.v22i1.11244 

scholarly journals Influence of Root-Inducing Substances and Time Intervals on the Rooting of Acerola Cuttings

1969 ◽  
Vol 43 (3) ◽  
pp. 152-158
Author(s):  
Raúl Abrams ◽  
George C. Jackson
Keyword(s):  
Ascorbic Acid ◽  
Acid Content ◽  
Ascorbic Acid Content ◽  
Time Interval ◽  
Naphthaleneacetic Acid ◽  
Agricultural Experiment Station ◽  
Indolebutyric Acid ◽  
Time Intervals ◽  
Agricultural Experiment ◽  
Sand Beds

Because of the high ascorbic acid content of the pulp of its fruit, the acerola (Malpighia punicifolia L.) has good potentialities as an economic crop for Puerto Rico. The Agricultural Experiment Station therefore, has selected clones of a high ascorbic acid content of which B. 15 is one of the best. The best and most rapid type of true-to-type propagation for the selected clones is by means of cuttings. In this experiment cuttings of acerola clone B. 15 were treated with indolebutyric and naphthaleneacetic acid and left in the sand beds for 6, 8, and 10 weeks. The major results were: 1. Indolebutyric acid significantly increased the number of cuttings that rooted. 2. Leaving the cuttings in the sand beds for 8 weeks proved this to be the optimum time interval for the rooting of the cuttings. 3. The use of the plant hormones significantly increased the number of roots per cutting.

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.

THE EFFECT OF LOW TEMPERATURE ON THE ASCORBIC ACID CONTENT OF THE OVOTESTIS OF THE SLUG, ARION SUBFUSCUS (DRAPARNAUD)

1957 ◽  
Vol 35 (5) ◽  
pp. 609-613
Author(s):  
D. Pelluet
Keyword(s):  
Ascorbic Acid ◽  
Low Temperature ◽  
Acid Content ◽  
Ascorbic Acid Content ◽  
Arion Subfuscus ◽  
Initial Decrease

The amount of ascorbic acid in the slug Arion subfuscus has been estimated quantitatively at laboratory temperatures and at 0°–2 °C. The results show that the effect of the exposure to the low temperature reduces the amount-present in the ovotestis significantly. In general, the amount of ascorbic acid in the cold treated animals does not exceed that of the controls. This result does not agree with the cytological appearance of the ovotestis exposed to the same conditions, in which the cold treated animals show an increased number of granules of ascorbic acid after an initial decrease.

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