scholarly journals MOROCCAN STRAWBERRY TREE (Arbutus Unedo L.) LEAVES: COMPARATIVE STUDY OF THE NUTRITIONAL VALUE AND MINERAL COMPOSITION

2021 ◽  
Vol 9 (6) ◽  
pp. 734-744
Author(s):  
Zakaria Ait Lhaj ◽  
Farida Ait Lhaj ◽  
Khalid Taghzouti ◽  
Younes Abbas ◽  
Fatima Gaboun ◽  
...  
Keyword(s):  
Mineral Composition ◽  
Small Ruminants ◽  
Genetic Effect ◽  
Dry Weight ◽  
Nutritional Composition ◽  
Arbutus Unedo ◽  
Livestock Feed ◽  
Strawberry Tree ◽  
Tall Shrub ◽  
Potential Use

Strawberry tree (Arbutus Unedo L.) is one of the evergreen trees that grow spontaneously in Moroccan forests. This tall shrub is traditionally used in grazing zones of some Moroccan areas, especially during the dry season, but its value in Morocco has still been underestimated. In this paper, the nutritional composition of A. unedo leaves sample collected from seven Moroccan regions has been assessed. For this, the leaves were dried, crushed, and chemically analyzed for their proximate composition, energetic value, total and reducing sugar, and mineral composition. Results of this study suggested that samples from BniAarouse (BA) region showed the highest contents of essential nutrients such as proteins, dietary fiber, ashes, and fat with average values of 7.53, 17.89, 4.14, and 8.05 g/ 100 g of dry weight, respectively, which positively influences its consumption by small ruminants. Cluster analysis based on surveyed parameters separated the strawberries individuals into four distinct groups, providing a high variability among and within studied locations. That could be related to the diversity of the edaphoclimatic conditions between regions and to the genetic effect. The results of the present study highlighted the potential use of leaves as livestock feed, with intermediate quality, and promotes their optimal cultivation and subsequent domestication in Morocco.

scholarly journals Quantitative analysis of arbutin and hydroquinone in strawberry tree (Arbutus unedo L., Ericaceae) leaves by gas chromatography-mass spectrometry / Kvantitativna analiza arbutina i hidrokinona u listovima obične planike (Arbutus unedo L., Ericaceae) plinskokromatografskom metodom uz detekciju masenim spektrometrom

2015 ◽  
Vol 66 (3) ◽  
pp. 197-202 ◽  
Author(s):  
Karlo Jurica ◽  
Irena Brčić Karačonji ◽  
Sandra Šegan ◽  
Dušanka Milojković Opsenica ◽  
Dario Kremer
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Limit Of Detection ◽  
Dry Weight ◽  
Gas Chromatography Mass Spectrometry ◽  
Phenolic Glycoside ◽  
Good Precision ◽  
Arbutus Unedo ◽  
Chromatography Mass Spectrometry ◽  
Strawberry Tree

Abstract The phenolic glycoside arbutin and its metabolite with uroantiseptic activity hydroquinone occur naturally in the leaves of various medicinal plants and spices. In this study, an extraction procedure coupled with gas chromatography-mass spectrometry (GC-MS) was developed to determine arbutin and hydroquinone content in strawberry tree (Arbutus unedo L., Ericaceae) leaves. The method showed good linearity (R2>0.9987) in the tested concentration range (0.5-200 μg mL-1), as well as good precision (RSD<5 %), analytical recovery (96.2-98.0 %), and sensitivity (limit of detection=0.009 and 0.004 μg mL-1 for arbutin and hydroquinone, respectively). The results obtained by the validated GC-MS method corresponded well to those obtained by high performance liquid chromatography (HPLC) method. The proposed method was then applied for determining arbutin and hydroquinone content in methanolic leaf extracts. The amount of arbutin in the leaves collected on the island of Koločep (6.82 mg g-1 dry weight) was found to be higher (tpaired=43.57, tc=2.92) in comparison to the amount of arbutin in the leaves collected on the island of Mali Lošinj (2.75 mg g-1 dry weight). Hydroquinone was not detected in any of the samples. The analytical features of the proposed GC-MS method demonstrated that arbutin and hydroquinone could be determined alternatively by gas chromatography. Due to its wide concentration range, the method could also be suitable for arbutin and hydroquinone analysis in leaves of other plant families (Rosaceae, Lamiaceae, etc.).

scholarly journals Nutrient Composition and Calorific Value of Some Seaweeds from Bet Dwarka, West Coast of Gujarat, India

Our Nature ◽  
1970 ◽  
Vol 7 (1) ◽  
pp. 18-25 ◽  
Author(s):  
Nirmal Kumar J.I. ◽  
R.N. Kumar ◽  
K. Patel ◽  
S. Viyol ◽  
R. Bhoi
Keyword(s):  
Mineral Composition ◽  
West Coast ◽  
Nutrient Concentration ◽  
Calorific Value ◽  
Dry Weight ◽  
Nutritional Composition ◽  
Ash Content ◽  
Nutrient Composition ◽  
Ulva Lactuca ◽  
Calorific Content

Seaweeds are used many folds for animal and human food, soil manure, salt extractions (soda, iodine etc.) and colloid production (agar-agar, alginate, carrageenan, furcellaran etc.), cosmetics and pharmaceutics. These represent important economical resources in world wide, where they are not only largely harvested but also intensively and largely employed in the human nutrition. Mineral composition of seaweeds was found relatively higher as compared to the land vegetables. Keeping the significance in mind, in current work nine seaweeds such as Chaetomorpha spp., Cladophora facicaularis, Ulva lactuca, Caulerepa racemosa, Caulerepa sertularioides, Valoniopsis pachynema, Sargassum ilicifolium, Sargassum polycustum and Porphyra vietnamensis growing along the Bet Dwarka, West Coast of Gujarat, India were collected and analyzed for nutrient / mineral composition like Mg, K, Na, Ca, S, N, Cl and P, ash content and calorific value. The nutrient concentration ranges found for each sample, were as follows:  Mg, 70.4-248.1; K, 16.6-128.04; Na, 78.7-129.07; Ca, 121-476.67; S, 101.11-214.99; N, 34.31-56.34; Cl, 26.12-235.66; and  P, 0.78-1.53 expressed in g/100 g dry weight.  Calorific content and ash content, ranged between 11.3-22.6 MJ/Kg and 23.0-41.9 g/100 g dry weight, respectively. Calorific content was negatively correlated with ash content and nutrient composition, but ash content was found to be positive correlation with mineral composition of selected sea weeds. Key words: Seaweeds, Ulva lactuca Nutritional composition, Calorific content, Ash contentDOI: 10.3126/on.v7i1.2565Our Nature (2009) 7:18-25

scholarly journals Mineral Composition of Red Clover under Rhizobium Inoculation and Lime Application in Acid Soil

2015 ◽  
Vol 43 (2) ◽  
pp. 554-560 ◽  
Author(s):  
Olivera STAJKOVIC-SRBINOVIC ◽  
Dušica DELIC ◽  
Nataša RASULIC ◽  
Dragan CAKMAK ◽  
Djordje KUZMANOVIC ◽  
...  
Keyword(s):  
Mineral Composition ◽  
Rhizobium Leguminosarum ◽  
Trifolium Pratense ◽  
Acid Soil ◽  
Red Clover ◽  
Dry Weight ◽  
Rhizobium Inoculation ◽  
Shoot Dry Weight ◽  
Trifolium Pratense L ◽  
Lime Application

In the present study the effects of Rhizobium inoculation and lime application on the mineral composition (N, P, K, Ca, Mg, Fe, Mn, Cu, Zn, B) of red clover (Trifolium pratense L.), in very acid soil were evaluated. Inoculation with Rhizobium leguminosarum bv. trifolii significantly increased shoot dry weight (SDW) of red clover plants (three times greater), as well as N, Mg, Fe, Mn and Cu contents in plants compared to the control. Application of lime and Rhizobium together, depending on the lime rate (3, 6 or 9 t ha-1 of lime) and the cut, increased SDW significantly, but decreased the contents of N, P, K, Mg, Mn, Zn and B in plants. Regardless of the changes, in all treatments in both cuts, contents of N, K, Ca, Mg, Mn and Zn in plants were among sufficiency levels (Mg content was elevated in the second cut), while Fe content was mainly high, as well as Cu (in the second cut). Contents of P and B in plants were somewhat lower than sufficiency levels, but above critical level. Therefore, red clover can be grown with satisfactory yield and mineral composition in acid soil with Rhizobium inoculation only, but the application of P and B fertilization is desirable.

Genetic variability of Tunisian wild strawberry tree (Arbutus unedo L.) populations interfered from isozyme markers

2012 ◽  
Vol 146 ◽  
pp. 92-98 ◽  
Author(s):  
Malek Mhamdi Takrouni ◽  
Imen Ben El Haj Ali ◽  
Chokri Messaoued ◽  
Mohamed Boussaid
Keyword(s):  
Genetic Variability ◽  
Isozyme Markers ◽  
Arbutus Unedo ◽  
Strawberry Tree ◽  
Wild Strawberry

scholarly journals Fruit production of strawberry tree (Arbutus unedo L.) in two Spanish forests

2011 ◽  
Vol 84 (4) ◽  
pp. 419-429 ◽  
Author(s):  
M. Molina ◽  
M. Pardo-De-Santayana ◽  
L. Aceituno ◽  
R. Morales ◽  
J. Tardio
Keyword(s):  
Fruit Production ◽  
Arbutus Unedo ◽  
Strawberry Tree

scholarly journals Influence of boron on growth and mineral composition of bean (Phaseolus vulgaris L.)

1981 ◽  
Vol 38 (1) ◽  
pp. 309-318
Author(s):  
I. P. Oliveira ◽  
E. Malavolta
Keyword(s):  
Phaseolus Vulgaris ◽  
Mineral Composition ◽  
Nutrient Solution ◽  
Boron Concentration ◽  
Dry Weight ◽  
Phaseolus Vulgaris L ◽  
Mineral Concentration ◽  
Affected Plant ◽  
Differential Behaviour ◽  
Total Dry Weight

Nine cultivars of Phaseolus vulgaris L. were grown in nutrient solution to study the effect of boron on growth and mineral composition. Data obtained in thie study allowed for the following conclusions: (1) high levels of boron affected plant height, root length, dry weight of tops, dry weight of root, and total dry weight; (2) regression analysis was used to point out differential behaviour among cultivars in relation to boron concentration in nutrient solution; (3) the best mineral concentration in the plant tissue was obtained with application of 0,5 ppm of boron in the nutrient solution.

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.

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