vaccinium myrtillus
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Author(s):  
Nadia Ruscinc ◽  
Ana Lucía Morocho‐Jácome ◽  
Renata Miliani Martinez ◽  
Wagner Vidal Magalhães ◽  
Cassiano Carlos Escudeiro ◽  
...  

2022 ◽  
pp. 217-224
Author(s):  
Jean M. Bokelmann
Keyword(s):  

Author(s):  
Anita Chehri ◽  
Reza Yarani ◽  
Zahra Yousefi ◽  
Seyed Kazem Shakouri ◽  
Alireza Ostadrahimi ◽  
...  

Agronomy ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 2557
Author(s):  
Sorin Ciulca ◽  
Gheorghe Roma ◽  
Ersilia Alexa ◽  
Isidora Radulov ◽  
Ileana Cocan ◽  
...  

Fruits of bilberry (Vaccinium myrtillus L.) are valued mainly for their nutraceutical properties, and are among the fruits with the highest antioxidant activity due to their high content of phenolic compounds. The aim of this research was to assess the total polyphenol content and antioxidant activity of fruits in six wild bilberry populations from two regions of Romania over three years. The total polyphenol content was determined according to the Folin–Ciocalteu modified method, while the antioxidant activity was evaluated using the DPPH (2,2-diphenyl-1-picrylhydrazyl) free radical scavenging assay. The Padis and Raul Lung populations registered the highest values of polyphenol content and antioxidant activity, as such the fruits of these bilberry populations could be considered potential sources of antioxidants for direct consumption or for use as ingredients for food products or food supplements. Significant variation of total polyphenol content and antioxidant activity was observed both between populations from the same region and from different regions. The low level of broad sense heritability for total polyphenol content and antioxidant activity associated with the high effects of year, and population–year interaction indicates that the accumulation of polyphenols in bilberry fruits is influenced by changes in environmental conditions.


2021 ◽  
Vol 12 ◽  
Author(s):  
Antonietta G. Gravina ◽  
Raffaele Pellegrino ◽  
Angela Facchiano ◽  
Giovanna Palladino ◽  
Carmelina Loguercio ◽  
...  

Background and Aim: Several evidences have shown how, in hemorrhoidal disease, phlebotonic flavonoid agents such as quercetin reduce capillary permeability by increasing vascular walls resistance, how rutin and vitamin C have antioxidant properties, and that Centella asiatica has reparative properties towards the connective tissue. A retrospective study was designed in order to evaluate the efficacy and safety of a compound consisting of micronized flavonoids in combination with vitamin C and extracts of C. asiatica, Vaccinium myrtillus, and Vitis vinifera for grade II and III hemorrhoidal disease.Patients and Methods: Data of 49 patients, over 18, who were following a free diet regimen, not on therapy with other anti-hemorrhoid agents, treated with a compound consisting of 450 mg of micronized diosmin, 300 mg of C. asiatica, 270 mg of micronized hesperidin, 200 mg of V. vinifera, 160 mg of vitamin C, 160 mg of V. myrtillus, 140 mg of micronized quercetin, and 130 mg of micronized rutin (1 sachet or 2 tablets a day) for 7 days were collected. Hemorrhoid grade according to Goligher’s scale together with anorectal symptoms (edema, prolapse, itching, thrombosis, burning, pain, tenesmus, and bleeding) both before treatment (T0) and after 7 days of therapy (T7) were collected. Primary outcomes were the reduction of at least one degree of hemorrhoids according to Goligher’s scale assessed by proctological examination and compound safety. The secondary outcome was the reduction of anorectal symptoms assessed by questionnaires administered to patients.Results: Forty-four patients (89.8%) presented a reduction in hemorrhoidal grade of at least one grade (p < 0.001). No adverse events with the use of the compound were noted. A significant reduction was observed in all anorectal symptoms evaluated (p < 0.05). No predictors of response to the compound were identified among the clinical and demographic variables collected.Conclusion: The compound analyzed was effective and safe for patients with grade II and III hemorrhoidal disease according to Goligher’s scale.


Forests ◽  
2021 ◽  
Vol 12 (12) ◽  
pp. 1647
Author(s):  
Ingrida Mažeikienė ◽  
Birutė Frercks ◽  
Daiva Burokienė ◽  
Irena Mačionienė ◽  
Alvija Šalaševičienė

Regardless of their growth locations and species diversity, plants have endophytic bacterial communities. Bilberry (Vaccinium myrtillus L.) is valuable for human health because of its antioxidant properties, and the plant has adapted to stressful growing conditions in forests. Here, we aimed to describe the composition of the community of endophytic microorganisms in bilberry leaves and to determine whether the diversity of endophytic bacteria varies depending on the geographical location of the plants. In this study, we evaluated the significance of endophytes in the host plant and the potential use of such bacteria. Twenty-five culturable bacterial isolates were identified in V. myrtillus leaves based on 16S rRNA gene sequencing and phylogenetic analysis. For the first time, we report upon the diversity of endophytic communities coexisting in bilberry leaves in different geographical locations of the Nordic-Baltic region. Under harsh conditions, the bilberry plants had a greater diversity of bacteria. The bacterial families Bacillaceae, Paenibacillaceae and Micrococcaceae were the most common endophytes in leaves of bilberry. Strains of Staphylococcaceae, Lactobacillaceae, Pseudomonaceae, Corynebacteriaceae and Planococcaceae were identified in samples from Finland and Norway. Plant growth-promoting genes (acdS and AcPho) and/or enzymatic activity were identified in many isolates.


Author(s):  
Лариса МАРУШКО ◽  
Елла КАДИКАЛО ◽  
Микола ЛУКАЩУК

Метою роботи було виявлення антиоксидантного ефекту екстрактів із лікарських рослин родини Ericaceae: брусниці звичайної (Vaccinium vitis-idaea L.), буяхів (Vaccіnіum ulіgіnosum L.), журавлини болотної (Oxycoccus Hill L.), чорниці звичайної (Vaccinium myrtillus L.), на окиснювальну стабільність харчових олій та олійних емульсій (основи майонезів). Об’єктом дослідження стала олія соняшникова та емульсія на основі цієї олії. Для їхньої стабілізації вико- ристовували олійні, водні та водно-спиртові екстракти із пагонів брусниці, буяхів, журавлини і чорниці. Для визначення антиоксидантного ефекту обраховували пероксидне число екстрактів і контрольного зразка. Такі дослідження є актуальними, оскільки антиоксидантна дія фітоекстрактів брусниці звичайної, буяхів, журавли- ни болотної, чорниці звичайної є маловивченою, порівняно з іншими представниками родини Вересових. Визначення ступенів інгібування процесу окиснення олії соняшникової за додавання олійних екстрактів пока- зало, що екстракти чорниці та журавлини мають сильний антиоксидантний ефект (ступені інгібування 57% і 51%, відповідно), екстракт брусниці володіє середнім антиоксидантним ефектом (35%), екстракт буяхів вияв- ляє слабкий антиоксидантний ефект (21%). Обрахувавши відсоток інгібування процесу окиснення емульсії на основі олії соняшникової за додавання водних фітоекстрактів, встановлено, що водні екстракти чорниці та журавлини виявляють середній антиоксидант- ний ефект (41% та 37%, відповідно), водні екстракти брусниці та буяхів мають слабкий антиоксидантний ефект (24% і 15%, відповідно). За використання водно-спиртових фітоекстрактів для приготування емульсії на основі олії соняшникової встановлено, що ступінь інгібування процесу окиснення в усіх випадках є дещо вищим, ніж за використання водних фітоекстрактів, а саме: водно-спиртовий екстракт чорниці виявляє сильний антиоксидантний ефект (53%), водно-спиртові екстракти журавлини та брусниці мають середній антиоксидантний ефект (46% і 32%, відповідно), водно-спиртовий екстракт буяхів чинить слабкий антиоксидантний ефект (19%).


2021 ◽  
pp. 131703
Author(s):  
Andrew P. Dare ◽  
Catrin S. Günther ◽  
Angus C. Grey ◽  
George Guo ◽  
Nicholas J. Demarais ◽  
...  

Author(s):  
Lina Traksele ◽  
Valentinas Snitka

AbstractIn this study, an investigation of the wild bilberries (Vaccinium myrtillus L.) of the different Baltic–Nordic regions using surface-enhanced Raman spectroscopy (SERS) combined with principal component analysis (PCA) is presented. The bilberries were collected in Lithuania, Latvia, Finland and Norway. The set of the SERS spectra of the berry extracts (pH ~ 4) were recorded on the silver nanoparticles based SERS substrates. The SERS spectra of the extracts were acquired using 532 nm laser as an excitation source. The morphology of the SERS substrates was evaluated by scanning electron microscopy (SEM) and the presence of the silver nanoparticles was confirmed by the energy-dispersive X-ray spectroscopy (EDX). The enhancement factor (EF) of the silver SERS substrates was found to be 105. It has been shown that a strong fluorescence background, associated with the phenolic compounds found in bilberries, can be subtracted due to the fluorescence-quenching properties of the silver nanoparticles. Therefore, an application of the SERS technique allowed to observe the characteristic peaks of the bilberries and the PCA tool enabled to evaluate the spectral variation across the entire SERS data set. The results presented in this paper show that the SERS technique coupled with PCA chemometric analysis might serve as a complementary method that allows to identify the country of origin of the bilberries based on the spectral differences.


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