scholarly journals Effects of gelling agents on growth, mineral composition and naphthoquinone content of in vitro explants of hybrid walnut tree (Juglans regia × Juglans nigra)

1993 ◽  
Vol 50 (2) ◽  
pp. 177-186 ◽  
Author(s):  
E Barbas ◽  
C Jay-Allemand ◽  
P Doumas ◽  
S Chaillou ◽  
D Cornu
Keyword(s):  
Mineral Composition ◽  
Juglans Regia ◽  
Juglans Nigra ◽  
Gelling Agents ◽  
Walnut Tree

The Influence of Carbohydrate Gelling Agents on Rat Intestinal Transport of Monosaccharides and Neutral Amino Acids in Vitro

1980 ◽  
Vol 59 (5) ◽  
pp. 373-380 ◽  
Author(s):  
B. Elsenhans ◽  
U. Süfke ◽  
R. Blume ◽  
W. F. Caspary
Keyword(s):  
Intestinal Absorption ◽  
Membrane Filtration ◽  
Intestinal Transport ◽  
Michaelis Constant ◽  
Experimental Conditions ◽  
Plant Polysaccharides ◽  
Gelling Agents ◽  
Layer Resistance ◽  
Filtration Technique

1. In the present investigation with rings of everted rat small intestine, carbohydrate gelling agents (plant polysaccharides) such as guaran, pectin, tragacanth, carubin and carrageenan were employed to study their direct effect on intestinal absorption of α-methyl-d-glucoside, d-galactose, l-leucine and l-phenylalanine. 2. Inhibition was found to correlate with the viscosity of the incubation medium, a function only of the polysaccharide concentration, and was independent of other properties of the carbohydrate gelling agents. 3. Reversal of this inhibition was achieved either by washing the tissue free of polysaccharide or by raising tissue agitation. 4. Uptake kinetics in polysaccharide-containing solutions revealed a marked increase of the apparent Michaelis constant although the maximal transport capacity remained essentially unaltered. 5. Since there was no binding of the substrate by the polysaccharides under experimental conditions as judged by a membrane filtration technique, it is concluded that carbohydrate gelling agents may impair intestinal absorption by means of an increased unstirred layer resistance.

scholarly journals Enhancement of in Vitro Rooting By Gelling Agents and Activated Charcoal in Rehmannia Glutinosa L.

2015 ◽  
Vol 15 (2) ◽  
pp. 49-52
Author(s):  
Hyun Ho Kim ◽  
Aye Aye Thwe ◽  
Haeng Hoon Kim ◽  
Sang Un Park
Keyword(s):  
Activated Charcoal ◽  
In Vitro Rooting ◽  
Rehmannia Glutinosa ◽  
Gelling Agents

scholarly journals TO THE ENTOMOFAUNA OF THE WALNUT TREE (JUGLANS REGIA L.) IN AZERBAIJAN

2020 ◽  
Author(s):  
I.A. Nuriyeva ◽  
◽  
G.I. Nadirova ◽  
Keyword(s):  
Juglans Regia ◽  
Hyphantria Cunea ◽  
Walnut Tree

The paper is written on the basis of research conducted on walnut tree in 2017–2019 in the Ismayilli, Gabala, Zagatala and Khachmaz regions of Azerbaijan. As a result of research, the following pests were recorded: aphids Panaphis juglandis and Chromaphis juglandicola (Aphididae); beetle – Sarrothripus musculana Ersch. (Flatidae) Stephanitis pyri (Tingidae); butterfly – Hyphantria cunea (Lepidoptera, Arctiida), fly – Polyodaspis ruficornis Mcq. (Diptera, Chloropidae).

scholarly journals Mineral Content and Antisickling Activity of Annona senegalensis, Alchornea cordifolia and Vigna unguiculata Used in the Management of Sickle Cell Disease in the Kwilu Province (Congo, DR)

2020 ◽  
pp. 18-27
Author(s):  
Jules M. Kitadi ◽  
Clément L. Inkoto ◽  
Emmanuel M. Lengbiye ◽  
Damien S. T. Tshibangu ◽  
Dorothée D. Tshilanda ◽  
...  
Keyword(s):  
Sickle Cell Disease ◽  
Mineral Composition ◽  
Sickle Cell ◽  
Mineral Elements ◽  
Spectrometric Method ◽  
Spectrometric Analysis ◽  
Composition Analysis ◽  
Cell Disease ◽  
Republic Of The Congo

Aims: To determine the mineral composition of some plants (Annona senegalensis Pers., Alchornea cordifolia (Schumach. & Thonn.) Müll. Arg. and Vigna unguiculate (L.) Walp.) used in the management of sickle cell disease by traditional practitioners in Kwilu province and to evaluate their antisickling activity in vitro.  Study Design: Plant collection in the Kwilu province, sample preparation,  antisickling tests and fluorescence spectrometric analysis. Place and Duration of Study: This work was performed at the Faculty of Science, University of Kinshasa, Congo DR, from October 2016 to January 2018. Methodology: These three plants were harvested in the province of Kwilu in Democratic Republic of the Congo. The mineral composition analysis was carried out using the fluorescence spectrometric method while the in vitro antisickling activity was evaluate using Emmel and hemolysis tests. Results: Twenty three mineral elements were identified in each of these three plants: Potassium (K), Phosphorus (P), Calcium (Ca), Sodium (Na), Magnesium (Mg), Sulphur (S), Chlorine (Cl) and trace elements as: Aluminum (Al), Silicon (Si), Vanadium (V), Chromium (Cr), Manganese (Mn), Iron (Fe), Nickel (Ni), Copper (Cu), Zinc (Zn), Selenium (Se), Brome (Br), Molybdenum (Mo), Tin (Sn), Iodine (I), Barium (Ba) and Lead (Pb). Annona senegalensis Pers., Alchornea cordifolia (Schumach. & Thonn.) Müll.Arg. and Vigna unguiculate (L.) Walp. aqueous extracts showed the capacity to prevent the sickling and the hemolysis of red blood cells. Conclusion: The obtained results confirm the antisickling activity thus justifying the use of these plants in Traditional Medicine for the management of sickle cell disease. The presence of some mineral elements like Fe, Zn, Mg and Se are useful for sickle cell disease patients.

scholarly journals Impact of Green Vegetables and Green Smoothies on Enamel Mineral Composition In Vitro

2019 ◽  
Vol 29 (3) ◽  
Author(s):  
Ines Willershausen ◽  
Daniel Schulte ◽  
Brita Willershausen ◽  
Adriano Azaripour
Keyword(s):  
Mineral Composition

scholarly journals Adjustment of Mineral Elements in the Culture Medium for the Micropropagation of Three Vriesea Bromeliads from the Brazilian Atlantic Forest: The Importance of Calcium

HortScience ◽  
2009 ◽  
Vol 44 (1) ◽  
pp. 106-112 ◽  
Author(s):  
Alice Noemí Aranda-Peres ◽  
Lázaro Eustáquio Pereira Peres ◽  
Edson Namita Higashi ◽  
Adriana Pinheiro Martinelli
Keyword(s):  
New Media ◽  
Mineral Composition ◽  
Culture Media ◽  
Dry Weight ◽  
Defined Medium ◽  
Ms Medium ◽  
Media Formulation ◽  
Half Strength

Many different species of Bromeliaceae are endangered and their conservation requires specific knowledge of their growth habits and propagation. In vitro culture of bromeliads is an important method for efficient clonal propagation and in vitro seed germination can be used to maintain genetic variability. The present work aims to evaluate the in vitro growth and nutrient concentration in leaves of the epiphyte bromeliads Vriesea friburguensis Mez, Vriesea hieroglyphica (Carrière) E. Morren, and Vriesea unilateralis Mez, which exhibit slow rates of growth in vivo and in vitro. Initially, we compared the endogenous mineral composition of bromeliad plantlets grown in half-strength Murashige and Skoog (MS) medium and the mineral composition considered adequate in the literature. This approach suggested that calcium (Ca) is a critical nutrient and this was considered for new media formulation. Three new culture media were defined in which the main changes to half-strength MS medium were an increase in Ca, magnesium, sulfur, copper, and chloride and a decrease in iron, maintaining the nitrate:ammonium rate at ≈2:1. The main difference among the three new media formulated was Ca concentration, which varied from 1.5 mm in half-strength MS to 3.0, 6.0, and 12 mm in M2, M3, and M4 media, respectively. Consistently, all three species exhibited significantly higher fresh and dry weight on M4, the newly defined medium with the highest level of Ca (12 mm). Leaf nitrogen, potassium, zinc, magnesium, and boron concentrations increased as Ca concentration in the medium increased from 1.5 to 12 mm.

PARAMETERS AFFECTING THE IN VITRO GROWTH AND ROOTING OF JUGLANS REGIA L.

1997 ◽  
pp. 235-240 ◽  
Author(s):  
M.E. Sánchez-Olate ◽  
D.G. Ríos ◽  
M.A. Gea ◽  
R. Rodríguez ◽  
M.A. Revilla
Keyword(s):  
Juglans Regia ◽  
In Vitro Growth

scholarly journals Maintaining a Physiological Blood Glucose Level with ‘Glucolevel’, a Combination of Four Anti-Diabetes Plants Used in the Traditional Arab Herbal Medicine

2008 ◽  
Vol 5 (4) ◽  
pp. 421-428 ◽  
Author(s):  
Omar Said ◽  
Stephen Fulder ◽  
Khaled Khalil ◽  
Hassan Azaizeh ◽  
Eli Kassis ◽  
...  
Keyword(s):  
Juglans Regia ◽  
Human Fibroblasts ◽  
Tolerance Test ◽  
Positive Control ◽  
Diabetic Rats ◽  
Yeast Cells ◽  
Sugar Uptake ◽  
Glucose Levels

Safety and anti-diabetic effects of Glucolevel, a mixture of dry extract of leaves of theJuglans regiaL,Olea europeaL,Urtica dioicaL andAtriplex halimusL were evaluated usingin vivoandin vitrotest systems. No sign of toxic effects (using LDH assay) were seen in cultured human fibroblasts treated with increasing concentrations of Glucolevel. Similar observations were seenin vivostudies using rats (LD50: 25 g/kg). Anti-diabetic effects were evidenced by the augmentation of glucose uptake by yeast cells (2-folds higher) and by inhibition of glucose intestinal absorption (∼49%) in a rat gut-segment. Furthermore, treatment with Glucolevel of Streptozotocin-induced diabetic rats for 2–3 weeks showed a significant reduction in glucose levels [above 400 ± 50 mg/dl to 210 ± 22 mg/dl (P< 0.001)] and significantly improved sugar uptake during the glucose tolerance test, compared with positive control. In addition, glucose levels were tested in sixteen human volunteers, with the recent onset of type 2 diabetes mellitus, who received Glucolevel tablets 1 × 3 daily for a period of 4 weeks. Within the first week of Glucolevel consumption, baseline glucose levels were significantly reduced from 290 ± 40 to 210 ± 20 mg/dl. At baseline, a subgroup of eleven of these subjects had glucose levels below 300 mg% and the other subgroup had levels ≥ 300 mg%. Clinically acceptable glucose levels were achieved during the 2–3 weeks of therapy in the former subgroup and during the 4th week of therapy in the latter subgroup. No side effect was reported. In addition, a significant reduction in hemoglobin A1C values (8.2 ± 1.03 to 6.9 ± 0.94) was found in six patients treated with Glucolevel. Results demonstrate safety, tolerability and efficacy of herbal combinations of four plants that seem to act differently but synergistically to regulate glucose-homeostasis.

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