136 research outputs found
Maladera cardoni
No full textMaladera cardoni (Brenske, 1896) Material examined. 1 male: “ India: Assam, Barpeta, Manas Tiger Reserve, 10.iv.1986, leg. S.S. Saha “(NZSI); 1 male: “ India: Uttarakhand, Garhwal, Tehri, Roddhar, 16.v.2002, leg. S.K. Chakraborty ” (NZSI); 2 males: “ India: Himachal Pradesh, Solan, Nauni, 1325 m, 30°90’N, 77°10’E, 6.vi.2019, leg. K. Sreedevi ” (NBAIR); 1 male: “ India: Punjab, Ludhiana, 30°90’N, 75°86’E, 3.x.2006, leg. Rajinder and Amardeep ” (NBAIR); 1 male: “ India: Tamil Nadu, Rajapalayam, 14.xi.2006, leg. Ravikumara ” (NBAIR); 2 males: “ India: Rajasthan, Jaipur, 431 m, 26° 91’ N, 75° 79’ E, 2.viii.2019, leg. K. Sreedevi and A. S. Baloda ” (NBAIR). Remark. This is the first state record of this species for Assam and Tamil Nadu, previously recorded from India (Rajasthan, Uttarakhand, Sikkim, West Bengal), and Bhutan, Nepal, Afghanistan and Pakistan (Ahrens & Fabrizi 2016).Published as part of Chandra, Kailash, Ahrens, Dirk, Bhunia, Debika, Sreedevi, Kolla & Gupta, Devanshu, 2021, New species and records of Sericini from India (Coleoptera: Scarabaeidae Melolonthinae), pp. 492-510 in Zootaxa 4951 (3) on pages 502-503, DOI: 10.11646/zootaxa.4951.3.4, http://zenodo.org/record/466821
Bioprotective properties of Dragon's blood resin: <it>In vitro </it>evaluation of antioxidant activity and antimicrobial activity
No full textAbstract Background Food preservation is basically done to preserve the natural characteristics and appearance of the food and to increase the shelf life of food. Food preservatives in use are natural, chemical and artificial. Keeping in mind the adverse effects of synthetic food preservatives, there is a need to identify natural food preservatives. The aims of this study were to evaluate in vitro antioxidant and antimicrobial activities of Dragon's blood resin obtained from Dracaena cinnabari Balf f., with a view to develop safer food preservatives. Methods In this study, three solvents of varying polarity were used to extract and separate the medium and high polarity compounds from the non-polar compounds of the Dragon's blood resin. The extracts were evaluated for their antimicrobial activity against the food borne pathogens. The antioxidant activities of the extracts were assessed using DPPH and ABTS radical scavenging, FRAP, metal chelating and reducing power assays. Total phenolics, flavonoids and flavonols of extracts were also estimated using the standard methods. Results Phytochemical analysis of extracts revealed high phenolic content in CH2Cl2 extract of resin. Free radical scavenging of CH2Cl2 extract was found to be highest which is in good correlation with its total phenolic content. All test microorganisms were also inhibited by CH2Cl2 extract. Conclusions Our result provide evidence that CH2Cl2 extract is a potential source of natural antioxidant compounds and exhibited good inhibitory activity against various food borne pathogens. Thus, CH2Cl2 extract of Dragon's blood resin could be considered as possible source of food preservative.</p
Effect of Trifluoromethyl Substitution on C-3 Position in 1H NMR of Quinolones / Coumarins
Full text linkThe structural assignment of differently substituted quinolones / coumarins was reviewed using 1H NMR spectral data. In case of quinolones / coumarins, with varied substitutions at C-4 and different positions of the benzenoid ring, there is a great variation in the 1H NMR value of the proton only attached with C-3. It was observed that when different substitutions (methyl / amino / hydroxy / acetoxy / trifluoromethyl) were carried out at C-4 position, maximum deshielding with the proton attached with C-3 was observed with trifluoromethyl substitution. The observation is same even with the variation in different groups at the benzenoid ring.Â
<i style="mso-bidi-font-style:normal"><span style="font-size:15.0pt;font-family:"Times New Roman","serif";mso-fareast-font-family: "Times New Roman";mso-bidi-font-family:Mangal;mso-ansi-language:EN-IN; mso-fareast-language:EN-IN;mso-bidi-language:HI">In vitro</span></i><span style="font-size:15.0pt;font-family:"Times New Roman","serif";mso-fareast-font-family: "Times New Roman";mso-bidi-font-family:Mangal;mso-ansi-language:EN-IN; mso-fareast-language:EN-IN;mso-bidi-language:HI"> evaluation of bio-protective properties of underutilized<i style="mso-bidi-font-style:normal"> Myrica esculenta </i>Buch.–Ham. ex D. Don fruit of Meghalaya</span>
No full text183-188<span style="font-size:9.0pt;font-family:
" times="" new="" roman","serif";mso-fareast-font-family:"times="" roman";mso-bidi-font-family:="" mangal;mso-ansi-language:en-us;mso-fareast-language:en-us;mso-bidi-language:="" hi"="" lang="EN-US">Oxidative stress causes an imbalance between systemic manifestation of
reactive free radicals and biological systems’ ability to detoxify reactive
intermediates, thus causing damage to all components of cells. Natural
polyphenols with promising antioxidant and free radical scavenging activities
can counter oxidative damage in cells. The present
study focuses on the antioxidant, antimicrobial, anticancer activity of the
MeOH extract of fresh soh-phie
(Myrica esculenta Buch.-Ham. ex D.
Don) fruits and their relation to phytoconstituents in vitro. The
levels of phenolic, flavonoid and flavonol compounds were found to be 26.21±0.1
GAE µg/mg dry extract, 38.00±0.5 RE μg/mg dry extract and 122.75±0.1 RE μg/mg
dry extract, respectively. MeOH
extract showed DPPH (2,2-diphenyl-picrylhydrazyl hydrate) and
ABTS (1,2,2′-azinobis-[3-ethylbenzothiazoline-6-sulfonic acid]) radical
scavenging activity in a dose-dependent manner with maximum inhibition of
91.91±0.2 % and 82.57±2.9 %, respectively. GC/MS screening revealed the
presence of
4H-Pyran-4-one, pentadecanoic acid, 2-furancarboxaldehyde, phytol and
hexadecanoic acid which may be responsible for its antimicrobial and
antioxidant potential. LC-MS data also reveals presence of ferulic and gallic
acid, which may have a significant role towards its anticancer activity. The
data suggest that the MeOH extract of <span style="mso-bidi-font-style:
italic">Soh-phie fruits has potential to be used as a source of natural
antioxidants and preservative in the food industry.</span
Bioprotective properties of Dragon's blood resin: In vitro evaluation of antioxidant activity and antimicrobial activity
No full textPhytochemical profiling of little millet (Panicum sumatrense Roth.)
No full text555-564The little millet (Panicum sumatrense Roth.) has great potential to develop as functional food and source of
nutraceuticals to prevent metabolic disorders. The aim of the current study aim is to identify the bioactive compounds
present in little millet (Panicum sumatrense). The bioactives were analysed using GC-MS and UHPLC-QTOF-MS. GC-MS
analysis majorly showed the presence of hydrocarbons, fatty acids, and terpenes, while UHPLC-QTOF-MS analysis showed
22 secondary metabolites, including quercetin, palmitic acid, β-stigmasterol, luteolin, and kaempferol. ICP-MS detected 21
macro- and micro-elements, with potassium (K), magnesium (Mg), and molybdenum (Mo) as the major elements. FAME
analysis revealed the presence of linoleic acid (42%), oleic acid (34.1%), and palmitic acid (15.7%)as the major fatty acids.
Amino acid profiling indicated the presence of essential, non-essential, and non-proteinogenic amino acids. These findings
suggest that P. Sumatrense could be a valuable natural source of bioactive metabolites and can be utilised to develop valueadded
functional foods
Biocontrol of wood-rotting fungi
No full text20-25Fungal decay and deterioration of softwood and hardwood trees are the most common and damaging problems of forest and timber industries worldwide. A range of microbial as well as insect deteriogens can attack wood. Although some wood types contain chemical extractives that confer resistance against wood decay fungi, most are non-durable and subject to attack by a wide range of fungi, thereby necessitating a broad spectrum controlling action. The wood preserving industry uses chemical wood preservatives that pose adverse health and environmental effects. To avoid this, new biological and biochemical control systems are needed for the preservation of wood decay. This review summarizes the state of art in research and prospective use of wood and rhizosphere-inhabiting actinomycetes as biocontrol agents for brown- and white-rot fungi
Evaluation of nutritional and antioxidant potential of Indian Buckwheat grains
No full text40-44In this study,<i style="mso-bidi-font-style:
normal"> grains of two buckwheat species: Fagopyrum esculentum (IC37309) and Fagopyrum tataricum
(var. himpriya) were phytochemically
investigated for their nutritional, and antioxidant potential for their use as
functional foods. Methanolic extracts of grains of two <i style="mso-bidi-font-style:
normal">Fagopyrum species showed higher phenolic content and antioxidant
activity. Inductively
coupled plasma optical emission spectrometry (ICP-OES) analysis
presented these grains as a good source of minerals. This work demonstrated
that grains of Fagopyrum species under study possess high protein,
carbohydrate, phenolic content and antioxidative potential thus can be a good
source of nutrition
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