Pomegranate is a medicinal and nutritional fruit that has several bioactivities including antimicrobial, antiviral, antioxidant, anti-inflammatory, antidiabetic, and anticarcinogenic activities. Pomegranate seed ethanol extract incorporated in cellulose dispersions and cellulose films using mild operating conditions. Carboxymethylcellulose showed the highest pH, conductivity, zeta-potential and particle size. Hydroxyethylcellulose had the highest viscosity and the lowest particle size. Hydroxypropylmethylcellulose revealed the lowest conductivity and viscosity. Methylcellulose contained the lowest pH and zeta-potential. Pomegranate seed ethanol extract caused a decrease in pH and conductivity and an increase in zeta potential, particle size and antioxidant power of the dispersions. The lowest tensile strength, elastic modulus, and swelling belonged to hydroxyethylcellulose film. Hydroxypropylmethylcellulose film showed the highest tensile strength, elastic modulus and swelling and the lowest elongation at break and water transmissions. Methylcellulose film contained the highest elongation at break and water transmission. Pomegranate seed ethanol extract caused a decrease in tensile strength, elastic modulus and swelling, and an increase elongation at break and water transmission of the film. Scanning electron microscope analyses indicated that pomegranate seed ethanol extract had an impact on the film morphology. Pomegranate seed ethanol extract caused a coarse film microstructure due to the appearance of pomegranate seed ethanol extract aggregates which produce discontinuities in film matrix.
Optically active bionanocomposite membranes composed of polyester (PE) and cellulose/silica bionanocomposite (BNCs) prepared with simple, green and inexpensive ultrasonic irradiation process. It is a novel method to enhance the gas separation performance. The novel optically active diol containing functional trifluoromethyl groups was prepared in four steps reaction and it was fully characterized by different techniques. Commercially available silica nanoparticles were modified with biodegradable nanocellulose through ultrasonic irradiation technique. Transmission electron microscopy (TEM) analyses showed that the cellulose/silica composites were well dispersed in the polymer matrix on a nanometer scale. The mechanical properties nanocomposite films were improved by the addition of cellulose/silica. Thermo gravimetric analysis (TGA) data indicated an increase thermal stability of the PE/BNCs in compared to the pure polymer. The results obtained from gas permeation experiments showed that adding cellulose/silica to the PE membrane structure increased the permeability of the membranes. The increase in the permeability of the gases was as follows: P (38%)
In order to evaluate arbuscular mycorrhizal fungi and rhizobium bacteria effects on leaf nitrogen (N) and phosphorus (P) concentration and root characteristics of green bean and maize under intercropping, experiment was carried out in the research field of College of Agriculture, Payame Noor University of Azna, Lorestan, Iran. In experiment, sandy loam soil with pH 7.3 and EC 0.49 dS m -1 was used.The treatments comprised three cropping systems (sole cropping of green bean and maize, and intercropping), and four inoculations (control, arbuscular mycorrhizal fungi, rhizobium and mix of arbuscular mycorrhizal fungi and rhizobium). The results showed that inoculation with rhizobium improved length, diameter, volume and area of green bean root.The highest of green bean N, P concentration and root dry mass were observed in sole culture of green bean inoculated with arbuscular mycorrhizal fungi. Moreover, root length, diameter, volume and area of maize increased by arbuscular mycorrhizal fungi, and total concentration of N and P enhanced with use of rhizobium in sole cropping. Although the usage of Rhizobium and AMF can be affected on increasing the root growth and nutrient uptake of crops, application of bacterium and fungi combination at the same time would not be suitable. Overall, intercropping of maize with green bean caused to increase of leaf N and P concentrations and root growth of maize. . Obravnavanja so obsegala tri setvene sisteme (čista setev fižola in koruze in medsetve) in štiri inokulacije (kontrola, arbuskularne mikorizne glive, rizobium in mešanica arbuskularnih mikoriznih gliv in rizobium). Rezultati so pokazali, da je inokulacija z rizobijem izboljšala dolžino, premer, volumen in površino korenin fižola. Največja vsebnost N, P in največja suha masa korenin fižola sta bili izmerjeni v čistem posevku fižola inokuliranem z arbuskularnimi mikoriznimi glivami. Dolžina korenin, premer, volumen in površina korenin koruze so se povečali pri inokulaciji z arbuskularnimi mikoriznimi glivami, a vsebnost celukopnega N in P se je povečala le pri čistem posevku koruze in inokulaciji z rizobijem. Čeprav uporaba rizobijuma in arbuskularnih mikoriznih gliv lahko poveča rast korenin in privzem hranil poljščin pa njihova hkratna uporaba ni vedno primerna. Na osnovi raziskave lahko zaključimo, da medsetev fižola v koruzo povzroči povečanje listne vsebnosti N in P koruze in poveča rast njenih korenin.Ključne besede: inokulacija; arbuskularne mikorizne glive; rizobakterije; medsetev; dolžina korenin; površina korenin; suha masa korenin; P; N Zahra MARZBAN et al.Acta agriculturae Slovenica, 109 -1, marec 2017 80
Background: Although several studies have evaluated the risk of gynecological cancers in women with polycystic ovary syndrome (PCOS), there are controversies regarding it. Objective: This study aimed to investigate the association of PCOS with endometrial, ovarian, and breast cancers. Materials and Methods: PubMed, Scopus, Web of Science, and Google Scholar databases based on MESH terms using the combination of the appropriate keywords were searched to retrieve observational studies on endometrial, ovarian, and breast cancers in PCOS women, published from inception to April 2020. This meta-analysis was performed to determine the pooled odds ratio (OR) of these cancers in women with PCOS. Publication bias was assessed by using Begg’s test. Results: Of 1347 records retrieved by searching the databases, a total of 14 articles were included in the study. Overall, the pooled OR of the composite outcome, including endometrial, ovarian, and breast cancers in women with PCOS was higher than that of women with no PCOS (pooled OR: 1.4, 95% CI: 1.0-1.9). The pooled OR of endometrial (pooled OR: 2.2, 95% CI: 1.03-4.7) and ovarian (pooled OR: 1.3, 95% CI: 1.0-1.8) cancers in women with PCOS was higher than the control group, whereas the pooled OR of breast cancer was not significantly higher than that of the control group. Conclusion: This meta-analysis indicated an increased risk of endometrial and ovarian cancers in women with PCOS. Key words: Polycystic ovary syndrome, Endometrial cancer, Ovarian cancer, Breast cancer.
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