Notulae Scientia Biologicae
ISSN / EISSN : 2067-3205 / 2067-3264
Current Publisher: AcademicPres (EAP) Publishing House (10.15835)
Total articles ≅ 937
Latest articles in this journal
Notulae Scientia Biologicae, Volume 12, pp 741-751; doi:10.15835/nsb12310585
From this context we have been interested in biochemical and phytochemical parameters of local and foreign varieties of wheat bran whose purpose is to search to see if there are intraspecific and interspecific varietal differences. The study concerned five varieties of soft wheat bran selected at CCLS Sidi Bel Abbés and consumed in many regions of Algeria. The biochemical compounds of grains (proteins, cellulose, ash content and phytochemical (total phenols, flavonoids and antioxidant activity) were determined in all varieties. The wheat bran, the subject and material of this study, was obtained from whole wheat grains collected from three varieties of soft wheat and used in our case to produce and extract the maximum of soft wheat bran. The varieties used were ‘HD’ (SWBHD) and ‘Anzar’ (SWBA) local variety and one imported, ‘Habbour’ variety (SWBHB). Two samples of marketed soft wheat bran, imported, were provided in this work to compare their nutritional components. Different techniques and methods were used in this experimental study (infra-red approach spectrophotometer, flame spectrophotometer). The results obtained show that ‘Eriad’ soft wheat bran (SWBE) is rich in protein with a variation of 15.78% at 18.07%; and is slightly elevated compared to other samples. Regarding the results obtained for cellulose, a high value was recorded for (SWBTAZ) variety 11.3%, and a lower one for (SWBHB) marketed at a value of 3.6%. The maximum concentration of potassium and sodium was obtained in the SWBAZ variety with a level of 3.16 mg/l and 30.36 mg/l respectively. The evaluation of phytochemicals has shown the presence of considerable amounts of polyphenols and flavonoids qualitatively and quantitatively. SWBAZ variety was very rich in total polyphenols, flavonoids and DPPH respectively with values of (1.101±0.01 mg EAG/g) and (0.174±0.001 EC/g) (1.39±0.01 EAG/g) compared to the different varieties studied. In conclusion, the SWBAZ variety could thus be considered, in our case, as an important source of phytonutrients.
Notulae Scientia Biologicae, Volume 12; doi:10.15835/nsb12310824
Notulae Scientia Biologicae (http://www.notulaebiologicae.ro), Issue 3, Volume 12, 2020: The papers published in this issue represent interesting novelties in different topics of life science. Among the exciting researches or reviews, we invite readers to find news about: The effects of Mediterranean diet and EVOO consumption in relation to human health; Molecular docking and pharmacokinetic screening of eucalyptol (1,8 cineole) from eucalyptus essential oil against SARS-CoV-2; Anticancer potentials of leaf, stem, and root extracts of Achyranthes aspera L.; Protective potentials of ethyl acetate-ethanolic fraction of Carica papaya leaves against acetaminophen-induced liver damage in rats; Possible ameliorative effects of hydromethanol extract of Thymus vulgaris on cadmium induced hepatorenal toxicity in rats; Beneficial effect of Mentha spicata essential oil on lead and manganese induced nephrotoxicity and oxidative damage in rat kidney; Plant parasitic nematode communities associated with the crop banana (Musa spp.) at Attappady Tribal hill area, India; Synthesis and antimicrobial activities of a metallic oxide nanoparticle complex of Moringa oleifera leaves extracts against selected microorganisms; Response of roadside tree leaves in a tropical city to automobile pollution; Is COVID-19 impacting plant science, and is plant science impacting COVID-19?
Notulae Scientia Biologicae, Volume 12, pp 729-740; doi:10.15835/nsb12310768
Pollen allergy is an abnormal response of the immune system to certain pollen grains and these reactions are gradually on the increase all around the world. The need for consistent and accurate data on aero-pollen density as well as the meteorological conditions under which they are prevalent is imperative for appropriate management of allergic conditions in hypersensitive persons. Therefore, to identify the ‘culprit’ pollen related to allergy cases in Lagos, two locations, Ipaja and Ikeja were sampled. Aero-samplers were harvested weekly from February 2016 to July 2016. Acetolysis was done on the samples collected and meteorological data from Nigerian Meteorological Agency and clinical data from Adefemi Medical Center, Ipaja were assessed against pollen counts. The total pollen count of 2,048 was recorded for Ipaja while Ikeja had 820 with main taxa of Amaranthaceae, Poaceae and Euphorbiaceae. Weekly pollen counts were highest in weeks 8 and 10(April) at Ipaja and Ikeja respectively and lowest in weeks 22 and 24(June) at Ipaja and Ikeja respectively. The pollen counts at Ipaja correlated positively with temperature and from the medical records, there was a positive correlation (p
Notulae Scientia Biologicae, Volume 12, pp 637-645; doi:10.15835/nsb12310686
A qualitative micromorphological assessment of the seven species of Isolona occurring in Nigeria and the Cameroons was undertaken with the aid of light microscope. The stomatal cells are particularly useful, providing stable characters which can be reliably employed in distinguishing the species. Hypostomatic leaves and paracytic stomatal type are generic constant. Possession of only paracytic stomata is characteristic of I. dewevrei whereas other species may have in addition another type such as 1+2 laterocytic stomatal type found only in I. zenkeri and presence of brachyparacytic stomata which shows relatedness of I. campanulata, I. congolana, I. hexaloba, I. pleurocarpus and I. thonneri. The epidermal surfaces appeared glabrous but an indication of hairs is shown by the presence of a glandular trichome base only in I. hexaloba. The epidermal cell characters such as epidermal cell shapes and anticlinal wall patterns seem to intergrade and they are not as definite as the stomatal cells. However, a combination of these features will be helpful in defining the species better and their leaf fragments can be differentiated based on the various characters studied for effective utilization in herbal medicinal research.
Notulae Scientia Biologicae, Volume 12, pp 486-499; doi:10.15835/nsb12310737
Contaminants in the environment occur naturally and/or through anthropogenic activities. These contaminants become a threat to all living organisms because of their increased in the environment and non-biodegradable nature. In order to protect the environment from these contamination, various techniques have been developed, and among them is phytoremediation. Phytoremediation is a technology that employed plant species for reclaiming contaminated soil, air, and water. This technology has been widely accepted in recent times, because of its low cost and environmentally friendly. In addition, augmentation of the contaminated soil, either chemo augmentation or bioaugmentation, have been used for the effective absorption of some of these contaminants. When the plants are grown in the contaminated sites, the contaminant in the soil maybe removed, immobilized, degraded or volatized. These phytoremediation technologies are: phytoextraction, phytovolatilization, rhizofiltration, phyto-stimulation, phyto-stabilization and phytodegradation. Based on the phytoremediation potentials of plants, pollutants are being removed from the environment thereby keeping the environment safe.
Notulae Scientia Biologicae, Volume 12, pp 769-772; doi:10.15835/nsb12310778
COVID-19 changed 2020 massively after becoming a worldwide pandemic. Many countries affected by the disease witnessed disruptions in the agricultural, farming, industry, production and distribution sectors, causing a loss of crops due to reduced consumer demand. Sales of cut flowers, potted plants and seasonal crops that are sensitive to specific seasons or dates were affected, as were fertilizer and food security. Academics, including plant scientists, with limited work or research conditions during the pandemic, alleviated their work through alternative approaches, e.g., in silico research, or made more time to writing research papers, while student education has largely been placed on hold or held online by lecturers. Most COVID-19 research has focused primarily on medical and social aspects while some plant science-related research has been conducted on the use of traditional medicinal plants as possible alleviating agents, but not cures, to COVID-19 patients. The integrity of science and publishing, including research related to plants, is being tested as cases of superficial research, lax or superficial peer review, and misinformation abound. COVID-19 has thus had limited impact on plant science, and vice versa, thus far, even though it is likely that most plant scientists were affected.
Notulae Scientia Biologicae, Volume 12, pp 556-567; doi:10.15835/nsb12310629
The liver is an important organ performing vital roles that become affected when damaged. The protective potential of ethyl acetate-ethanolic fraction of Carica papaya leaves on acetaminophen-induced liver damage in female albino rats was investigated. Forty female rats were completely randomized into eight groups (A-H) of five rats each. Group A (control), received 1 ml of distilled water, group B (untreated) received 250 mgkg-1 bw of acetaminophen, group C received silymarin (50 mgkg-1 bw) followed by actaminophen (250 mgkg-1 bw), groups D-G received 100, 200, 400 and 600 mgkg-1 bw of ethyl acetate-ethanolic fraction of Carica papaya leaves respectively; followed by acetaminophen administration (250 mgkg-1 bw), while group H (toxicity control) received 600 mgkg-1 bw extract fraction daily. Ethyl acetate-ethanolic fraction of Carica papaya leaves significantly (p
Notulae Scientia Biologicae, Volume 12, pp 619-627; doi:10.15835/nsb12310780
This research work aimed at synthesizing and investigating the antimicrobial activities of a metallic oxide nanoparticle complex of Moringa oleifera leaves extracts against some microorganisms. Moringa oleifera leaves were washed, dried and blended. They were extracted with distilled water and ethanol using standard methods. The nanoparticle was synthesized by coordinating with manganese oxide. The physicochemical properties were determined following standard procedures. The phytochemical screening was carried out by standard methods. The antibacterial activities were done using agar well diffusion method. Antifungal activity was carried out following the plate technique. The leaves extract had a 75% yield and melting point of 116 °C while the nanoparticle had a yield of 60% and melted at 78 °C with pH of 3.46. The molar conductance of the nanoparticle revealed at 10.6 Ω−1cm2mol−1. The ethanolic extract of the leaves showed the presence of alkaloids, tannin, steroids and saponins. The ethanolic extract of M. oleifera exhibited the highest antibacterial activity of 33.05±0.10 mm against Bacillus subtilis while its antifungal activity revealed the highest inhibition of 48.40±0.53 mm at 30 mg/mL against Aspergillus niger. Staphylococcus aureus had a zone of inhibition of 19.00±0.16a using the aqueous extract. The ethanolic extract of M. oleifera nanoparticles showed antibacterial and antifungal activity against B. megaterium and A. niger with a zone of inhibition of 49.21±0.32 mm and 50.35±0.29 mm respectively while the aqueous extract showed antibacterial activity against S. aureus with a zone of 26.00±0.38mm. As it was concluded ethanolic extract in both leaves extract and its nanoparticle, possessed higher antibacterial and antifungal activities than the aqueous extract.
Notulae Scientia Biologicae, Volume 12, pp 693-701; doi:10.15835/nsb12310766
Rice (Oryza sativa L.) is an important food for more than half of the world’s population. Globally, rice is grown on approximately 160 million hectares with an average annual production of 740.96 million tonnes. Salinity is an important abiotic factor for germination. In this study rice varieties were analysed for salt stress tolerance at germination growth stage. The response of eight rice varieties against six (0, 25, 50, 75, 100, 150 mM NaCl) salinity levels were studied at germination stage. Seeds of eight rice varieties (‘Yatkin’, ‘Miss-2013 Passali’, ‘Kale’, ‘Manyas Yildizi’, ‘Efe’, ‘Biga Incisi’ and ‘Osmancik-97’) were kept under six salt stress levels. Number of seeds germinated (number), germination rate (%), average germination time, fresh and dry weight of germinated seeds (g), fresh and dry weight of the coleoptile (g), fresh and dry weight of the radicle (g), the length of the coleoptile and radicle (mm) were recorded. The results showed that with increasing salt stress, germination in all the varieties was delayed. The increase in salt stress also reduced every measured trait significantly in all the varieties. Maximum germination percentage (100%) was observed in ‘Biga Incisi’ under all the salt stress levels. Our research data would be helpful for identification of the tolerant varieties which can be studied further in terms of economically.
Notulae Scientia Biologicae, Volume 12, pp 711-718; doi:10.15835/nsb12310755
Sugar beet and sugarcane are two major crops for sugar extraction throughout the world. However, the sugar beet importance is not just about sugar production but it also plays an important role in crop rotation and increased productivity in various industries as well as livestock feed. In this study the long-term (2009-16) field trial effect of alfalfa (4 years)-winter wheat (1 year)–fallow (1year)-sugar beet rotation on yield and quality parameters of sugar beet were evaluated for two consecutive rotations. The field trials were carried out at single location in Karaj, Iran, using randomized complete block design with four replications. Analysis of variance showed that the seasonal factors influenced different traits. In the first and second rotations, the root yield ranged from about 56.5 to 83.2 and 61.4 to 77.8 t ha-1, respectively with significant difference among cultivars in the first rotation. However, no significant difference was observed among both rotations in terms of root yield. Same results were obtained for sugar yield in both rotations which illustrates the stability of the above-mentioned traits. Except for sugar content, significant difference was observed among other traits in both rotations. We show for the first time the effect of completing two rotation sequences on sugar beet performance and quality for decision making into a continual expansion/development of crop cultivation.