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Journal articles on the topic 'Chemical studies'

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1

Fatma Gen, Fatma Gen, and Hanan Bsehen and Fatma Kandemirli Hanan Bsehen and Fatma Kandemirli. "Quantum Chemical Studies of Carbazochrome Molecule." Journal of the chemical society of pakistan 44, no. 2 (2022): 109. http://dx.doi.org/10.52568/000997/jcsp/44.02.2022.

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Control of spontaneous and postoperative bleeding is of particular concern to surgeons, anesthetists, hematologists, and the patient. Mainly carbazochrome(2-(1,2,3,6-tetrahydro-3-hydroxy-1-methyl-6-oxo-5H-indol-5-ylidene)-hydrazinecarboxamide,CBZ), adrenochrome derivative, currently used as hemostatic drugs. With Density Functional Theory (DFT), at B3LYP level with 6–311G(d,p), 6–311+G(d,p), 6–311++G(d,p), 6–311++G(2d,2p), 6-311++G(3df,3pd) basis sets. Molecular structure of carbazochrome (C10H12N4O3) in the basic state in gas phase and solvent (ethanol, N, N-dimethyl form amide, N, N-dimethyl
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2

A, Rohini, and Manikya Reddy P. "Physico-Chemical Studies on Safilguda Lake, Hyderabad." International Journal of Science and Research (IJSR) 10, no. 12 (2021): 30–32. https://doi.org/10.21275/sr211130110355.

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3

R Hema Krishna. "Studies on emerging chemical risks on Living beings in a chemical world." International Journal of Frontiers in Chemistry and Pharmacy Research 6, no. 1 (2025): 001–13. https://doi.org/10.53294/ijfcpr.2025.6.1.0021.

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Emerging chemical risks may arise from intentional or unintentional contamination of the food chain either by anthropogenic or ‘natural’ chemicals. More than 160 million chemicals are known to humans. About 40 000 to 60 000 of them can be found in commerce; 6000 of these account for more than 99% of the total volume of chemicals in commerce globally. Chemicals, whether of natural origin or produced by human activities, are part of our environment. Manufactured chemicals include industrial and agricultural products such as pesticides, petroleum products and processed metals. Some chemicals are
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4

Efdi, Mai, Satoshi Fujita, Toshiyasu Inuzuka, and Mamoru Koketsu. "Chemical studies onGoniothalamus tapisMiq." Natural Product Research 24, no. 7 (2010): 657–62. http://dx.doi.org/10.1080/14786410903132449.

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5

Li, Yong, Fang Qin, Si-Ming Wang, et al. "Chemical Studies onTaxus canadensis." Chemistry & Biodiversity 10, no. 10 (2013): 1729–53. http://dx.doi.org/10.1002/cbdv.201200032.

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6

Kaur, Gurpreet, and Poonam Aggarwal. "Storage Studies on Bottle Gourd Juice Preserved with Different Chemical Additives." Indian Journal of Applied Research 4, no. 2 (2011): 39–41. http://dx.doi.org/10.15373/2249555x/feb2014/65.

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7

Narasimhamurthy, Narasimhamurthy, Dr C. N. Pandey Dr. C. N. Pandey, and Dr S. K. Nath Dr. S. K. Nath. "Studies on Efficacy of Multi Component Preservative Chemical Against Mould Fungi." International Journal of Scientific Research 2, no. 6 (2012): 68–70. http://dx.doi.org/10.15373/22778179/june2013/22.

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8

Prabhakar, S., P. Krishna, and M. Vairamani. "Acetone chemical ionization studies. Acetone chemical ionization studies—IX: amino acids and nucleobases." Rapid Communications in Mass Spectrometry 11, no. 18 (1997): 1945–52. http://dx.doi.org/10.1002/(sici)1097-0231(199712)11:18<1945::aid-rcm70>3.0.co;2-e.

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9

Bansode, Sanjay, Ramesh Kapadnis, Vasant Wagh, Sampat Kale, and Habib Pathan. "Comparative Studies on Physico-Chemical Properties of Indium Sulfide Films Deposited under Different Deposition Conditions by Chemical Bath Deposition." Chemistry & Chemical Technology 8, no. 4 (2014): 441–44. http://dx.doi.org/10.23939/chcht08.04.441.

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10

Sisay, Melaku Assefa, Wendimagegn Mammo, and Estifanos Ele Yaya. "Chemical Studies of Rhus glutinosa." Chemistry of Natural Compounds 58, no. 1 (2022): 135–37. http://dx.doi.org/10.1007/s10600-022-03614-z.

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11

Ueda, Minoru, and Shosuke Yamamura. "Chemical Studies on Plant Movement." Current Organic Chemistry 2, no. 4 (1998): 437–61. http://dx.doi.org/10.2174/1385272802666220128215409.

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&lt;p&gt; Many plants close their leaves in the evening, as if to sleep, and open them early in the morning. Such a circadian rhythm has been known to be controlled by their internal clock. Since Ricca&amp;#039;s ingenious experiments suggested that some chemicals play an important role in the leaf-movement of Mimosa pudica, many biologists and chemists have attempted to locate the leaf - closing substances, and a number of compounds have been obtai­ ned, particularly, by Schildknecht et al. Recently, we were also able to isolate a small amount of a stimulant (activity: ca. 10&lt;sup&gt;8&lt;/
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12

KUWAHARA, Yasumasa. "Chemical Studies on Astigmatid Mites." Journal of Pesticide Science 15, no. 4 (1990): 613–19. http://dx.doi.org/10.1584/jpestics.15.613.

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13

Das, Biswanath, Maddeboina Krishnaiah, Katta Venkateswarlu, and Ratna Das. "Camptothecins: Some Recent Chemical Studies." Natural Product Communications 1, no. 3 (2006): 1934578X0600100. http://dx.doi.org/10.1177/1934578x0600100313.

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Camptothecin, a novel, naturally-occurring pyrrolo(3,4-b)-quinoline alkaloid, and its analogues (collectively known as camptothecins) possess interesting chemistry and important anticancer and antiviral properties. The isolation of various known and unknown camptothecins from the Indian plant Nothapodytes foetida (Wight) Sleumer (Icacinaceae) and our studies on their chemical and biochemical modifications are briefly reviewed.
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14

Berns, Donald S., and Robert MacColl. "Phycocyanin in physical chemical studies." Chemical Reviews 89, no. 4 (1989): 807–25. http://dx.doi.org/10.1021/cr00094a005.

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15

Sanni, A. I. "Chemical studies on sekete beer." Food Chemistry 33, no. 3 (1989): 187–91. http://dx.doi.org/10.1016/0308-8146(89)90012-5.

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16

Srinivasan, Yogambal, M. P. Ramprasad, and Avadhesha Surolia. "Chemical modification studies of gelonin." FEBS Letters 192, no. 1 (1985): 113–18. http://dx.doi.org/10.1016/0014-5793(85)80054-5.

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17

Guizzunti, Gianni, Thomas P. Brady, Derek Fischer, Vivek Malhotra, and Emmanuel A. Theodorakis. "Chemical biology studies on norrisolide." Bioorganic & Medicinal Chemistry 18, no. 6 (2010): 2115–22. http://dx.doi.org/10.1016/j.bmc.2010.02.007.

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18

Chuvylkin, N. D., A. N. Subbotin, S. A. Belov, and L. I. Belen´kii. "Quantum chemical studies of azoles." Russian Chemical Bulletin 66, no. 6 (2017): 941–45. http://dx.doi.org/10.1007/s11172-017-1835-3.

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19

UBUKATA, Makoto. "Chemical studies on new antibiotics." Journal of the agricultural chemical society of Japan 62, no. 11 (1988): 1629–36. http://dx.doi.org/10.1271/nogeikagaku1924.62.1629.

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20

Ghule, V. D., P. M. Jadhav, R. S. Patil, S. Radhakrishnan, and T. Soman. "Quantum-Chemical Studies on Hexaazaisowurtzitanes." Journal of Physical Chemistry A 114, no. 1 (2010): 498–503. http://dx.doi.org/10.1021/jp9071839.

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21

SAKAI, Shinichiro. "Chemical Studies of Indole Alkaloids." YAKUGAKU ZASSHI 115, no. 5 (1995): 351–69. http://dx.doi.org/10.1248/yakushi1947.115.5_351.

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22

Sadek, Shaymaa, Nour El Hoda M. Hanafe, mohamed Fahmy, and Ahmed Hassanein. "Chemical Studies on The Colostrum." Assiut Journal of Agricultural Sciences 43, no. 1 (2012): 1–8. http://dx.doi.org/10.21608/ajas.2012.265356.

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23

Zhukovich, E. N., L. M. Bobrenko, M. Yu Semenova, and S. Yu Bokareva. "Chemical Studies of Eucalyptus Tincture." Pharmaceutical Chemistry Journal 48, no. 5 (2014): 323–27. http://dx.doi.org/10.1007/s11094-014-1103-x.

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24

Sobels, F. H. "Studies in comparative chemical mutagenesis." Environmental Mutagenesis 7, no. 5 (1985): 759–73. http://dx.doi.org/10.1002/em.2860070513.

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25

Wang, Yu-Fang, Shu-Hong Yu, Mei Dong, Man-Li Zhang, Chang-Hong Huo, and Qing-Wen Shi. "Chemical Studies on Taxus cuspidata." Chemistry & Biodiversity 7, no. 7 (2010): 1698–716. http://dx.doi.org/10.1002/cbdv.200800295.

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26

Vairamani, M., K. V. Siva Kumar, and G. K. Viswanadha Rao. "Acetone chemical ionization studies: Olefins." Organic Mass Spectrometry 25, no. 7 (1990): 363–67. http://dx.doi.org/10.1002/oms.1210250704.

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27

Emsley, John. "Web Site: Chemical Case Studies." Angewandte Chemie International Edition 42, no. 37 (2003): 4425. http://dx.doi.org/10.1002/anie.200390584.

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28

N., BHATIA, SAHAI M., and L. KHOSA R. "Chemical Studies on Ailanthus excelsa." Journal of Indian Chemical Society Vol. 62, Jan 1985 (1985): 75–76. https://doi.org/10.5281/zenodo.6326654.

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Department of Pharmaceutics, Institute of Technology, Banaras Hindu University Varanasi-221 005 <em>Manuscript received 22 September 1983, accepted 18 January 1985</em> Chemical Studies on Ailanthus excelsa.
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29

Tiwari, Anuradha, Nand Lal, Kiran Singh, Brijesh Nanvi, and Neelam Pal. "FTIR Characterization and Physico-chemical Studies of Honey Samples in Kanpur Nagar." Journal of Forensic Chemistry and Toxicology 8, no. 2 (2022): 63–69. http://dx.doi.org/10.21088/jfct.2454.9363.8222.6.

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Honey is a valuable food entity that gains a lot of attention due to its potential benefits for health and its uses to sweeten foods. It contains about 60% invert sugar and appreciable amounts of maltose and sucrose. In this study, the Physico-chemical characteristics of pure and adulterated honey samples were investigated. The grade and limitation of adulteration of the honey samples also were checked. The moisture, ash and pH were carried out. The Fourier Transform Infrared Spectroscopy (FTIR) of different samples were analyzed. The result of FTIR spectroscopy provides reliable results.
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30

Hinsberg, W., S. MacDonald, N. Clecak, and C. Snyder. "Fundamental Studies of airborne chemical contamination of chemically amplified resists." Journal of Photopolymer Science and Technology 6, no. 4 (1993): 535–46. http://dx.doi.org/10.2494/photopolymer.6.535.

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31

Tabekha, M., M. Domah, N. El-Boraeey, H. Hamed, and Saadia Metwally. "PHYSICO-CHEMICAL AND TECHNOLOGICAL STUDIES ON PERSIMMON FRUITS: 1- PHYSICO-CHEMICAL STUDIES ON PERSIMMON FRUITS." Journal of Food and Dairy Sciences 32, no. 4 (2021): 2691–97. http://dx.doi.org/10.21608/jfds.2021.200245.

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32

LEME, Ednilse, Maristela DUTRA-CORREA, Paula da Silva RODRIGUES, Welber Senteio SMITH, Maria Martha BERNARDI, and Thiago Berti KIRSTEN. "BILLINGS RESERVOIR (BRAZIL): CHEMICAL STUDIES ON WATER AND CHEMICAL AND MORPHOLOGICAL STUDIES ON ZEBRAFISH GILLS." Boletim do Instituto de Pesca 47 (2021): e649. http://dx.doi.org/10.20950/1678-2305/bip.2021.47.e649.

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Previous study of this research group revealed that water from the Billings reservoir (Brazil) intended for human use (water supply and seafood) has microbiological contamination and causes lethality and brain and behavioral impairments in zebrafish. The objective of this study was to understand what have induced these impairments in the animal model. Chemical analyses on water samples from Rio Pequeno (RP), Rio Grande (RG), and Bororé (BO) rivers, as well as chemical and morphological analyses on zebrafish gills exposed to those waters were performed. Waters samples from RP, RG, and BO presen
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33

RAJA, Diraviam Patric, Visuvasam Soosai MANICKAM, Alexis John DE BRITTO, et al. "Chemical and Chemotaxonomical Studies of Ferns. Part LXXXVII. Chemical and Chemotaxonomical Studies on Dicranopteris Species." CHEMICAL & PHARMACEUTICAL BULLETIN 43, no. 10 (1995): 1800–1803. http://dx.doi.org/10.1248/cpb.43.1800.

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34

Goodson, William H., Leroy Lowe, Michael Gilbertson, and David O. Carpenter. "Testing the low dose mixtures hypothesis from the Halifax project." Reviews on Environmental Health 35, no. 4 (2020): 333–57. http://dx.doi.org/10.1515/reveh-2020-0033.

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AbstractIn 2013, 60 scientists, representing a larger group of 174 scientists from 26 nations, met in Halifax, Nova Scotia to consider whether – using published research – it was logical to anticipate that a mixture of chemicals, each thought to be non-carcinogenic, might act together in that mixture as a virtual carcinogen. The group identified 89 such chemicals, each one affecting one or more Hallmark(s) – collectively covering all Hallmarks of Cancer – confirming the possibility that a chemical mixture could induce all the Hallmarks and function as a virtual carcinogen, thereby supporting t
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35

Mendhe, Aishwary, Jinal Patel, and Ashish Nagar. "Physico-Chemical Studies on Crude Oil of Western Onshore." International Journal for Research in Applied Science and Engineering Technology 11, no. 4 (2023): 299–302. http://dx.doi.org/10.22214/ijraset.2023.49930.

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Abstract: Crude oil is a complex mixture of hydrocarbons with non-metallic elements such as sulphur, nitrogen, oxygen, and other elements. Hydrocarbons are chemicals that are mostly composed of the elements carbon and hydrogen. Crude oil comprises a variety of hydrocarbon molecules that fall into three categories: alkane, cycloalkane, and aromatic. Crude oil is distinguished by a number of chemical and physical features that play an essential role in the oil industry. These qualities are critical in making decisions in the exploration and production of crude oil. Characteristics like density,
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36

Rizwana, Humaira, Fatimah Al Otibi, and Nouf Al-malki. "Chemical composition, FTIR Studies and Antibacterial Activity of Passiflora edulis f. edulis (Fruit)." Journal of Pure and Applied Microbiology 13, no. 4 (2019): 2489–98. http://dx.doi.org/10.22207/jpam.13.4.64.

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37

OZTURK, Fatma Onen, and Oya AGLARCI. "Prospective Chemistry and Science Teachers’ Views and Metaphors about Chemistry and Chemical Studies." Eurasian Journal of Educational Research 17, no. 71 (2017): 119–40. http://dx.doi.org/10.14689/ejer.2017.71.7.

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38

Upadhyay, Gaurav. "Comparative Studies on the Enhanced Production of Heparinase by Physical and Chemical Mutagen." International Journal of Science and Research (IJSR) 11, no. 5 (2022): 1443–49. http://dx.doi.org/10.21275/sr22517152632.

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39

Sakata, Ken. "Quantum Chemical Studies of Lewis-Acid Catalyzed Organic Chemical Reactions." Journal of Synthetic Organic Chemistry, Japan 80, no. 2 (2022): 115–25. http://dx.doi.org/10.5059/yukigoseikyokaishi.80.115.

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40

McComas, Casey C., Joe B. Perales, and David L. Van Vranken. "Synthesis of (±)-Madindolines and Chemical Models. Studies of Chemical Reactivity." Organic Letters 4, no. 14 (2002): 2337–40. http://dx.doi.org/10.1021/ol026015e.

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41

Ponamarev, V. S. "OECD Chemicals Testing Regulation: validity for toxicological studies." Legal regulation in veterinary medicine, no. 4 (January 26, 2024): 119–21. http://dx.doi.org/10.52419/issn2782-6252.2023.4.119.

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In order to validate the methods used to determine the toxicity of drugs, researchers usually turn to the most authoritative scientific literature, the system of state standards, or alternative systems. One of them is the OECD (Organization for Economic Co-operation and Development) regulations on testing chemicals. The article provides a brief analysis of the OECD regulations for testing chemicals (in particular, Chapter 2 “Effects on Biotic Systems” and Chapter 4 “Effects on Health”), which is a set of internationally recognized specifications for testing chemicals approved by the Organizati
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42

Chandiramouli, R. "Quantum chemical studies on NiO nanoclusters." Journal of Atomic and Molecular Sciences 4, no. 4 (2013): 336–48. http://dx.doi.org/10.4208/jams.012013.032213a.

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43

Shoeb, Mohammad. "Chemical and Biological studies of Cyanobacteria." Dhaka University Journal of Pharmaceutical Sciences 13, no. 2 (2015): 119–24. http://dx.doi.org/10.3329/dujps.v13i2.21888.

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Cyanobacteria are photosynthetic prokaryotic microalgae which are found in marine, brackish and freshwater environments and in soils. Cyanotoxins including hepatotoxins and neurotoxins are produced by cyanobacteria commonly found in surface water. The most widely studied hepatotoxins are microcystins and nodularin which were first isolated from Microcystis aeruginosa and Nodularia spumigena, respectively. M. aeruginosa and N. spumigena were cultured and extracted with methanol. The qualitative and quantitative analysis of microcystins and nodularin in cultured cyanobacterial fractions were per
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44

TAKAYAMA, Shozo, Unnur P. THORGEIRSSON, and Richard H. ADAMSON. "Chemical carcinogenesis studies in nonhuman primates." Proceedings of the Japan Academy, Series B 84, no. 6 (2008): 176–88. http://dx.doi.org/10.2183/pjab.84.176.

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45

Zhang, Huiming, Bangshing Wang, Cheng-Guo Duan, and Jian-Kang Zhu. "Chemical probes in plant epigenetics studies." Plant Signaling & Behavior 8, no. 9 (2013): e25364. http://dx.doi.org/10.4161/psb.25364.

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46

Jasinski, J. M., B. S. Meyerson, and B. A. Scott. "Mechanistic Studies of Chemical Vapor Deposition." Annual Review of Physical Chemistry 38, no. 1 (1987): 109–40. http://dx.doi.org/10.1146/annurev.pc.38.100187.000545.

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47

Breza, Martin, and Viktor Milata. "Quantum-chemical studies of benzazoles nitration." Arkivoc 2005, no. 9 (2005): 80–89. http://dx.doi.org/10.3998/ark.5550190.0006.909.

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48

PATIL, V. N., R. M. KADAM, P. S. NAIK, and S. V. JOSHI. "Studies on chemical quality of Sandesh." RESEARCH JOURNAL OF ANIMAL HUSBANDRY AND DAIRY SCIENCE 8, no. 1 (2017): 34–40. http://dx.doi.org/10.15740/has/rjahds/8.1/34-40.

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49

HERRINGTON, THELMA M., and ANTHONY C. BRANFIELD. "Physico-chemical studies on sugar glasses." International Journal of Food Science & Technology 19, no. 4 (2007): 409–25. http://dx.doi.org/10.1111/j.1365-2621.1984.tb00365.x.

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50

HERRINGTON, THELMA M., and ANTHONY C. BRANFIELD. "Physico-chemical studies on sugar glasses." International Journal of Food Science & Technology 19, no. 4 (2007): 427–35. http://dx.doi.org/10.1111/j.1365-2621.1984.tb00366.x.

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