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Food Bioscience 2022年第1期45卷 274-283页

作者： snehasis chakraborty Sagar Mahale Rishab Dhar Somnath Basak Food Engineering and Technology Department Institute of Chemical Technology Matunga(E)Mumbai400019India

A mixed fruit beverage was formulated according to D-optimal mixture design using apple ber juice(X_(1),45-59%v/v)-an underexplored fruit,carambola juice(X_(2),1-20%v/v),and black table grape juice(X3,35-40%v/v).The crisp overall acceptability(COA)from 16 semi-trained panelists and overall hedonic score(OSH)from consumers were *** best formulation was apple ber:carambola:black table grape juices=59.0:3.5:37.5 v/v with COA and OSH values of 3.23(on a scale of 5)and 7.55(on a scale of 9),***,the efficacy of pulsed light(PL)(18-30 W cm^(-2) for 33-167 s;total fluence 600-5000 J cm^(-2))and thermal treatments(90℃ for 1-5 min)were studied on various attributes of the mixed *** beverages processed at 90℃ for 5 min(thermal treatment)and 5000 J cm^(-2)(PL treatment at 30 W cm^(-2) for 167 s)showed no microbial count with a complete enzyme *** thermally pasteurized sample(90℃/5 min)was more brown(browning index=70.15)than the PL pasteurized beverage(browning index=65.98).Interestingly,the PL pasteurized(5000 J cm^(-2))beverage showed 25%,27%,and 19% more vitamin C,antioxidants,and phenolic compounds,respectively,than the thermally pasteurized(90℃/5 min)*** PL-treated beverage had a greater sensory appeal than the thermally treated ***-treatment can be an efficient non-thermal pasteurization treatment for ensuring complete microbial and enzymatic inactivation with maximal retention of nutritional and sensory attributes of the blended beverage.

关键词： D-optimal mixture design Numerical optimization Non-thermal processing Pasteurization Microbial safety Enzymatic stability

Enzyme hydrolyzed bael fruit liquefaction and its kinetic study

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Food Bioscience 2022年第3期47卷 1189-1201页

作者： Rishab Dhar snehasis chakraborty Food Engineering and Technology Department Institute of Chemical TechnologyMumbaiMatunga (E)Maharashtra400019India

The study aims to explore the mechanism and optimize the process of enzyme hydrolyzed bael fruit(Aegle marmelos)liquefaction using two different enzymes:pectinase and macerozyme r-10(enzyme mixture).A full factorial design was applied for the factors with 0.05–1.5%(w/w)enzyme concentration(EC),30–60℃ temperature,and incubation time of 30–240 min for pectinase and 60–360 min for *** polynomial models were developed,showing R^(2)≥***-objective numeric optimization was followed to maximize the increase in yield,total reducing sugar(TRS),clarity,and minimizing EC,temperature and ***-treated juice extracts were acceptable on the sensory scale with overall acceptability>*** pomace reduction of 58.8%and 78.9%along with rise in mono and disaccharides were observed after treating with pectinase(t=240 min)and macerozyme(t=360 min),respectively at identical 0.775%EC and 45℃ *** the pectinase enzyme,an optimumΔyield of 32.4%was obtained at 0.82%EC,43℃ temperature in 169.4 ***,with the macerozyme,an optimumΔyield of 39.6%was attained at 0.96%EC,45.6°C temperature in 245.9 *** degradation in bael fruit by enzymatic hydrolysis with pectinase(EC=0.01–1.50%,time=2.5–240 min)and macerozyme(EC:0.01–1.50%,time:5–360 min)was studied at their respective optimum *** modified Michaelis-Menten showed a good fit(R 2>0.98)with the non-linear curve fitting *** treatment showed slower enzyme activity with higher substrate degradation but lower nutrient content compared to the pectinase treatment.

关键词： Bael fruit Enzyme hydrolysis Full factorial design Sensory evaluation Optimization Kinetic modeling

A Wide Learning Approach for Interpretable Feature Recommendation for 1-D Sensor Data in IoT Analytics

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International Journal of Automation and computing 2019年第6期16卷 800-811页

作者： snehasis Banerjee Tanushyam Chattopadhyay Utpal Garain TCS Research&Innovation Tata Consultancy ServicesEcospaceKolkata 700160India Computer Vision&Pattern Recognition Unit Indian Statistical Institute203 B.T.RoadKolkata 700108India

This paper presents a state of the art machine learning-based approach for automation of a varied class of Internet of things(Io T) analytics problems targeted on 1-dimensional(1-D) sensor data. As feature recommendation is a major bottleneck for general Io Tbased applications, this paper shows how this step can be successfully automated based on a Wide Learning architecture without sacrificing the decision-making accuracy, and thereby reducing the development time and the cost of hiring expensive resources for specific problems. Interpretation of meaningful features is another contribution of this research. Several data sets from different real-world applications are considered to realize the proof-of-concept. Results show that the interpretable feature recommendation techniques are quite effective for the problems at hand in terms of performance and drastic reduction in development time.

关键词： Feature engineering sensor data analysis Internet of things(IoT)analytics interpretable learning automation

In-depth investigation on physicochemical and thermal properties of magnesium(Ⅱ) gluconate using spectroscopic and thermoanalytical techniques

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Journal of Pharmaceutical Analysis 2017年第5期7卷 332-337页

作者： Mahendra Kumar Trivedi Neena Dixit Parthasarathi Panda Kalyan Kumar Sethi snehasis Jana Trivedi Global Inc. National Institute of Technology Trivedi Science Research Laboratory Pvt.Ltd.

Magnesium gluconate is a classical organometallic pharmaceutical compound used for the prevention and treatment of hypomagnesemia as a source of magnesium ion. The present research described the in-depth study on solid state properties viz. physicochemical and thermal properties of magnesium gluconate using sophisticated analytical techniques like Powder X-ray diffraction(PXRD), particle size analysis(PSA),Fourier transform infrared(FT-IR) spectrometry, ultraviolet–visible(UV–Vis) spectroscopy, thermogravimetric analysis(TGA)/differential thermogravimetric analysis(DTG), and differential scanning calorimetry(DSC).Magnesium gluconate was found to be crystalline in nature along with the crystallite size ranging from 14.10 to47.35 nm. The particle size distribution was at d(0.1)=6.552 μm, d(0.5)=38.299 μm, d(0.9)=173.712 μm and D(4,3)=67.122 μm along with the specific surface area of 0.372 m^2/g. The wavelength for the maximum absorbance was at 198.0 nm. Magnesium gluconate exhibited 88.51% weight loss with three stages of thermal degradation process up to 895.18 °C from room temperature. The TGA/DTG thermograms of the analyte indicated that magnesium gluconate was thermally stable up to around 165 °C. Consequently, the melting temperature of magnesium gluconate was found to be 169.90 °C along with the enthalpy of fusion of 308.7 J/***, the authors conclude that the achieved results from this study are very useful in pharmaceutical and nutraceutical industries for the identification, characterization and qualitative analysis of magnesium gluconate for preformulation studies and also for developing magnesium gluconate based novel formulation.

关键词： Magnesium gluconate Solid state properties Particle size analysis Thermal analysis Spectroscopic analysis

Solid and liquid state characterization of tetrahydrocurcumin using XRPD, FT-IR, DSC, TGA, LC-MS, GC-MS, and NMR and its biological activities

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Journal of Pharmaceutical Analysis 2020年第4期10卷 334-345页

作者： Mahendra Kumar Trivedi Parthasarathi Panda Kalyan Kumar Sethi Mayank Gangwar Sambhu Charan Mondal snehasis Jana Trivedi Global Inc. Henderson89052NevadaUSA Trivedi Science Research Laboratory Pvt.Ltd. Thane(W)-400604MaharashtraIndia

Tetrahydrocurcumin(THC)is one of the major metabolites of curcumin(CUR),an ancient bioactive natural polyphenolic *** research article describes both the solid and liquid state characterization of THC using advanced spectroscopic and thermo-analytical ***-inflammatory,anti-oxidant,and neuroprotective activities of THC were investigated using in vitro cell *** chromatography-mass spectrometry analysis revealed that our sample comprised 95.15%THC,0.51%tetrahydrodemethoxycurcumin(THDC),3.40%hexahydrocurcumin,and 0.94%*** chromatography-mass spectrometry analysis indicated the presence of 96.68%THC and 3.32%*** in solution existed as keto-enol tautomers in three different forms at different retention time,but the enol form was found to be dominant,which was also supported by nuclear magnetic resonance *** was thermally stable up to 335.55*** exhibited more suppression of cytokines(TNF-a,IL-1b,and MIP-1a)than CUR in a concentration-dependent manner in mouse splenocytes,while NK-cell and phagocytosis activity was increased in *** showed a significant reduction of free radicals(LPO)along with improved antioxidant enzymes(SOD and catalase)and increased free radical scavenging activity against ABTSt radicals in HepG2 *** displayed higher protection capability than CUR from oxidative stress and neuronal damage by improving cell viability against H2O2 induced HepG2 cells and MPPt induced SH-SY5Y cells,respectively,in a concentration-dependent ***,a variation of the biological activities of THC might rely on its keto-enol form and the presence of other THC analogs as *** present study could be advantageous for further research on THC for better understanding its physicochemical properties and biological variation.

关键词： Tetrahydrocurcumin Liquid chromatography-mass spectrometry Spectroscopic and thermal analysis Keto-enol tautomer Anti-inflammatory Antioxidant

Molecular Marker Development in Post-genomic Era:Leveraging Multiple Resources for Marker Development in Cotton and Other Crops

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棉花学报 2008年第S1期20卷 29-页

作者： KUMPATLA Siva P SHAH Manali R MUKHOPADHYAY snehasis THOMPSON Steven A GREENE Thomas W Department of Trait Genetics & Technologies Dow AgroSciences LLC 9330 Zionsville Road Indianapolis IN 46268 Department of Computer and Information Science Indiana University Purdue University Indianapolis

While the importance of molecular marker technology was realized more than two decades ago,high-throughput marker development came into vogue only after the availability of hundreds of thousands of sequences in public *** examples now exist where markers are being used routinely in breeding programs for marker-assisted selection(MAS) of traits of interest or marker assisted recovery of genome of *** analysis with thousands to tens of thousands of markers is now possible due to the...

关键词： SSR Molecular Marker Development in Post-genomic Era