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Food Bioscience 2022年第3期47卷 32-45页

作者： Sonia Mann Debolina Chakraborty sagarika biswas Department of Integrative and Functional Biology CSIR- Institute of Genomics & Integrative BiologyMall RoadDelhi110007India Academy of Scientific and Innovative Research (AcSIR) Ghaziabad201002India

Many underutilized fruit plants are still obscure,in spite of possessing high medicinal and nutritional ***,we reviewed one of the underutilized fruits tree(Choerospondias axillaris)and explored its occurrence,distribution,nutritional properties,phytochemicals,and medicinal value,along with associated challenges and *** mining using scientific and common name of this plant species,yielded 77 articles,indicating limited availability of *** parts of the species including fruits,seeds and bark have the potential to be used in different daily needs and therapeutic *** core problem to underutilized fruit tree sustainability includes indiscrimination,lesser accessibility and acceptability,insufficient information on their growth and *** challenges for the production and marketing of *** fruits along with the opportunities of having a high source of income and health benefits from these plants have been discussed.A scheme for the enhancement of utility of this underutilized fruit plants has been suggested in this review.A collective effort of botanists,food scientists,government and international shareholders are needed for promoting its domestication and *** fruits have been found to be a very promising resource in the areas of food and health industries,and possess great opportunity to flourish in the international market.

关键词： Alternative food Choerospondias axillaris Ethnomedicine Phytoconstituents Underutilized

Some study on dark and bright optical solitons in a real system with periodically distributed dispersion and nonlinearity

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Optoelectronics Letters 2022年第10期18卷 635-640页

作者： Chakradhar Rajowar sagarika Mandal Abhijit Sinha Department of Physics Bankura Sammilani CollegeBankuraIndia Department of Physics Bankura Zilla Saradamani Mahila MahavidyapithBankuraIndia Department of Physics Bankura Christian CollegeBankuraIndia

We study the dynamics of short optical pulses in a real system with periodically distributed dispersion and the nonlinearity is governed by the higher order nonlinear Schr?dinger equation(HNLSE) with linear and nonlinear gain(loss). Under specific parametric circumstances, where the dark and bright solitary waves are combined, a set of entirely new types of solitary waves with nonlinear chirp have emerged. For a properly intense optical pulse in the combined solitary waves, the binding of the bright and dark solitary waves is very strong. It is seen that by numerical simulation, these pooled types of solitary-like solutions show a high degree of stability while propagating over an extremely long distance in the considering system, even in the presence of a high degree of perturbation of the amplitude and white noise. All constraint relations on the physical parameters are explicitly shown to be related to the development and to the dynamical study of the chirped solitary like solution in the considering medium.

关键词： solitary nonlinearity system

Effect of elevated [CO_2] and nutrient management on wet and dry season rice production in subtropical India

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The Crop Journal 2015年第6期3卷 468-480页

作者： Sushree sagarika Satapathy Dillip Kumar Swain Surendranath Pasupalak Pratap Bhanu Singh Bhadoria Agricultural and Food Engineering Department Indian Institute of Technology Kharagpur Orissa University of Agriculture and Technology

The present experiment was conducted to evaluate the effect of elevated [CO_2] with varying nutrient management on rice–rice production system. The experiment was conducted in the open field and inside open-top chambers(OTCs) of ambient [CO_2](≈ 390 μmol L-1) and elevated [CO_2] environment(25% above ambient) during wet and dry seasons in 2011–2013at Kharagpur, India. The nutrient management included recommended doses of N, P, and K as chemical fertilizer(CF), integration of chemical and organic sources, and application of increased(25% higher) doses of CF. The higher [CO_2] level in the OTC increased aboveground biomass but marginally decreased filled grains per panicle and grain yield of rice, compared to the ambient environment. However, crop root biomass was increased significantly under elevated [CO_2]. With respect to nutrient management, increasing the dose of CF increased grain yield significantly in both seasons. At the recommended dose of nutrients, integrated nutrient management was comparable to CF in the wet season, but significantly inferior in the dry season, in its effect on growth and yield of rice. The [CO_2] elevation in OTC led to a marginal increase in organic C and available P content of soil, but a decrease in available N content. It was concluded that increased doses of nutrients via integration of chemical and organic sources in the wet season and chemical sources alone in the dry season will minimize the adverse effect of future climate on rice production in subtropical India.

关键词： Climate change Nutrient management Elevated [CO2] Rice yield Soil fertility

Cellulose nanocomposites:Fabrication and biomedical applications

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Journal of Bioresources and Bioproducts 2020年第4期5卷 223-237页

作者： Blessy Joseph sagarika V K Chinnu Sabu Nandakumar Kalarikkal Sabu Thomas International and Inter University Centre for Nanoscience and Nanotechnology Mahatma Gandhi UniversityKottayam-686560KeralaIndia Indian Institute of Science Education and Research TirupatiMangalamTirupati-517507Andhra PradeshIndia College of Pharmaceutical Sciences Government Medical CollegeKozhikode-673008KeralaIndia School of Energy Materials Mahatma Gandhi UniversityKottayam-686560KeralaIndia

Cellulose is a linear biopolymer which is composed of nanofibrils,thus having a large surface *** low-cost,low-density,high-specific-surface-area,easily processable polymer is found in nature in the form of plants,bacteria and *** has outstanding characteristics including low cytotoxicity,biocompatibility,good mechanical properties,high chemical stability,and cost effectiveness which make them suitable candidates for biomedical *** ma-nipulation of cellulose at nanoscale resulted in nanocellulose having exceptional physicochem-ical ***,cellulose nanocomposite is a fascinating area of research which has applications in biomedical fields like wound healing,bone tissue engineering,three dimensional printing,drug carriers,medical implants *** review is mainly focused on the developments in the generation of cellulose nanocomposites and their potential applications in the biomedical field.

关键词： Nanocellulose Mechanical property Tissue engineering Surface modification

Coleus forskohlii shows anti-psoriatic activity in imiquimod-induced psoriasis rats

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Asian Pacific Journal of Tropical Biomedicine 2024年第9期14卷 382-390,I0002-I0007页

作者： sagarika Majhi Iti Chauhan Deepak Kumar Md.Niyaz Alam Md.Sarfaraj Hussain Muzaffar Iqbal Faculty of Pharmacy I.T.S College of PharmacyMuradnagarGhaziabadU.P.India Lord Buddha Koshi Pharmacy College of Pharmacy BaijanathpurNH 107Saharsa(Bihar)852201India Department of Pharmaceutical Chemistry College of PharmacyKing Saud UniversityP.O.Box 2457Riyadh 11451Saudi Arabia

Objective:To evaluate anti-psoriatic activity of Coleus forskohlii in rats with imiquimod-induced ***:Imiquimod was used to induce psoriasis in *** weight,skin thickness,erythema,scaling,spleen weight,and histological alternations were measured to assess the effect of Coleus ***,an emulgel formulation containing Coleus forskohlii 10%was prepared and characterized along with its ex vivo permeation ***:The emulgel formulation containing Coleus forskohlii 10%had a pH of 5.40±0.36,with optimum spreadability of(31.67±2.08)g/(cm·s)and viscosity of(15966.67±1274.10)cps,and enhanced both the rate and the extent of drug permeation through psoriatic *** an ex vivo study,the quantity of drug permeated(19.18%),deposited(52.38%),and drug remaining in the donor compartments(28.31%)was *** forskohlii significantly alleviated imiquimod-induced psoriasis by increasing glutathione and superoxide dismutase activity,decreasing malondialdehyde and nitric oxide levels,and alleviating histological alternations in rat ***:Coleus forskohlii can alleviate imiquimod-induced psoriasis,which may be used as a therapeutic candidate for the treatment of psoriasis.

关键词： Psoriasis Coleus forskohlii Emulgel Ex vivo Imiquimod Carbopol

Development of a marketable rice based herbal porridge suitable for diabetics from Scoparia dulcis

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Agricultural Sciences 2013年第9期4卷 81-84页

作者： Subhashinie Senadheera sagarika Ekanayake Department of Biochemistry Faculty of Medical Sciences University of Sri Jayewardenepura Sri Lanka

Consumption of herbal leafy porridges is a reputed dietary remedy among Sri Lankans in treating diabetes. The aim of the study was to develop a rice based herbal porridge [rice: fresh leaves: scraped coconut kernel 13 - 15: 25 - 30: 10 - 13 (w/w/w)] commercially with Scopariadulcis leaves which has proven antidiabetic effects and low GI (fresh porridge) which benefits diabetics. Two porridges with the same ingredient ratio were produced with different particle sizes. Porridge produced with 100% fine particles (extruded rice, leaves and scraped coconut mixed with rice powder) elicited a high GI for normal (92 ± 22) and diabetic (97 ± 20) subjects. The second porridge prepared with the minimum amount of extruded rice with other ingredients mixed with boiled and dried intact rice grains had a medium GI (normal 58 ± 11, diabetics 61 ± 11). A significant reduction (p < 0.05) in the peak blood glucose was observed in diabetic subjects for porridge 2 (12.4%) compared to porridge 1 (0.7%) when compared to glucose. The reason could be the significantly high (p0.5 mm) (63%) and minimum amount of extruded fine particles in porridge 2 compared to porridge 1 (1.3%).

关键词： Herbal Leafy Porridges Scoparia dulcis Glycaemic Index Diabetes

Soil algae enzymes and their biotechnological applications

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Systems Microbiology and Biomanufacturing 2022年第4期2卷 589-606页

作者： Mohammad Amin Shoarnaghavi Arti Mishra Arian Amirifar Smruthi sagarika Mahapatra Khatereh Nobaharan Arash Hemati Behnam Asgari Lajayer Tess Astatkie Department of Biology Islamic Azad University of UrmiaUrmiaIran Amity Institute of Microbial Technology Amity UniversityNoidaUttar Pradesh 201303India Indira Gandhi Agricultural University RaipurChhattisgarh 492012India 12/9 Browns Avenue RingwoodMelbourneVIC 3134Australia Department of Soil Science Faculty of AgricultureUniversity of TabrizTabrizIran Faculty of Agriculture Dalhousie UniversityTruroNS B2N 5E3Canada

At present time,most of the enzymes are derived from biological sources,including plants,animals,microalgae,algae,and other *** enzymes,among the others,account for the biggest part of application and demand in *** enzymes from soil microorganisms are very essential not only for soil fertility but also for biotechnological *** enzymes from microalage,comprising Amylase,Carbonic anhydrase,Galactosidase,Laccase,L-Asparaginase,Lipase,Peroxidase,Phytase,Protease,and Superoxide dismutase attract a considerable amount of attention for themselves in various *** of the enzymes mentioned above have a great potential for their application in biotechnology and *** of such enzymes are known for their versatility and countless applications in various fields;thus,performing research on these enzymes in the future would be *** review paper presents an overview of the potential of soil algae enzymes in fields like biotechnology,medicine and agriculture,and also provides areas for advancement in researches related to this field.

关键词： Soil algae Microalgae Enzymes Biotechnological applications

Livestock Antibiotic Effects on Nitrification, Denitrification, and Microbial Community Composition in Soils

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Open Journal of Soil Science 2013年第5期3卷 203-212页

作者： sagarika Banerjee Elisa D’Angelo Department of Plant and Soil Sciences University of Kentucky Lexington USA.

The broiler (Gallus gallus domesticus) industry in the United States and several other countries routinely includes subtherapeutic levels of antibiotics such as roxarsone, virginiamycin, and bacitracin in the feed to improve bird growth yields. Large fractions of the antibiotics fed to the birds are excreted in manure (litter), which is often applied to soils to improve fertility. Some concerns with this practice are antibiotic-induced alterations in microbially-mediated nutrient cycling, which could influence plant productivity and environmental quality. To investigate this possibility, a series of lab experiments were conducted to determine the effects of increasing levels of the three livestock antibiotics on nitrification, denitrification, and microbial community composition (fatty acid methyl ester profiles) of soils collected along a catena. Roxarsone and virginiamycin significantly influenced microbial community composition and inhibited nitrification in the soils, but only at levels that were several-fold higher than expected in poultry litter-applied soils. Bacitracin did not affect microbial growth, microbial community composition, or nitrification at any concentration tested (up to 500 mg·kg-1). None of the antibiotics influenced denitrification at environmentally-relevant concentrations. Amounts of antibiotics in soil solution were greatly reduced by sorption, which followed Freundlich models in the concentration range of 1 -?500 mg·L-1. Results from this study indicated that addition of roxarsone, virginiamycin, or bacitracin to these soils at environmentally-relevant concentrations would not likely impact microbial community composition, nitrification or denitrification due to intrinsic resistance/insensitivity of microorganisms to these antibiotics and reductions in the bioavailable amounts due to sorption by soil surfaces.

关键词： Bacitracin Roxarsone Virginiamycin Sorption Antibiotic Resistance Fatty Acid Methyl Ester

New Integrators and Differentiators Using a MMCC

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Circuits and Systems 2012年第3期3卷 288-294页

作者： Palaniandavar Venkateswaran Rabindranath Nandi sagarika Das B. P. Poddar Institute of Management & Technology Kolkata-700052 India Department of Electronics & Telecommunication Engineering Jadavpur University Kolkata-700032 India

Using the new building block Multiplication-Mode Current Conveyor (MMCC), some inverting/non-inverting type integrator and differentiator designs are presented, wherein the time constant (τ) is tuned electronically. The MMCC is implemented by a readily available chip-level configuration using a multiplier (ICL 8013) and a current feedback amplifier (AD-844 IC) CFA. Detailed analysis, taking into account the device non-idealities, had been carried out that indicates slight deviations affecting the values of the nominal time constant but the design is practically insensitive to the port mismatch errors (ε). Satisfactory response on wave conversion, for signal frequencies up to 600 Khz had been verified with both hardware circuit test and PSPICE macromodel simulation.

关键词： Voltage-Controlled Oscillator Multiplication Mode Current Conveyor (MMCC) Current Feedback Opamp (CFA) Quadrature Oscillator

Selective Filters and Tunable Sinusoid Oscillator Using a CDBA

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Circuits and Systems 2013年第2期4卷 227-232页

作者： Rabindranath Nandi Palaniandavar Venkateswaran sagarika Das B. P. Poddar Institute of Management & Technology Kolkata India Department of Electronics & Telecommunication Engineering Jadavpur University Kolkata India

The realization of some new selective filters using single current differencing buffered amplifier (CDBA) and few RC components is presented. The same topology provides lowpass (LP), bandpass (BP) and highpass (HP) characteristics with appropriate choice and location of the RC components in the circuit. Incorporation of a suitable feedback loop through a voltage buffer unity-gain cell yields a tunable sinusoid oscillator. Effects of the device port mismatch errors (ε) and parasitic z-node capacitance (Cz) of the CDBA element are shown to be insignificant and corresponding sensitivities are extremely low. Satisfactory experimental verifications of the filter quality (Q) and oscillator tuning range (500 KHz ≤ fo ≤ 5 MHz) are carried out.

关键词： Current Differencing Buffered Amplifier Selective Filter Sinewave Generator Tunable Oscillator