STUDIES ON PROBIOTICS AND ANTIMICROBIAL PROPERTIES OF LACTIC ACID BACTERIA ISOLATED FROM MARINE FISH, SHRIMP AND SOUTH INDIAN FERMENTED FOODS Thesis Submitted to Pondicherry University for the Degree of DOCTOR OF PHILOSOPHY By R. SATISH KUMAR, M.Sc., Department of Biotechnology School of Life Sciences Pondicherry University Pondicherry 605014 INDIA December 2011 PONDICHERRY UNIVERSITY DEPARTMENT OF BIOTECHNOLOGY SCHOOL OF LIFE SCIENCES PONDICHERRY-605014 INDIA DR. V. ARUL Associate Professor CERTIFICATE Certified that this thesis entitled “Studies on probiotics and antimicrobial properties of lactic acid bacteria isolated from marine fish, shrimp, and South Indian fermented foods” is a record of research work done by the candidate Mr. R. Satish Kumar during the period of his study in the Department of Biotechnology, School of Life Sciences, Pondicherry University, under my supervision and that it has not previously formed the basis of the award of any degree, diploma, associateship or fellowship. Pondicherry Date: (V. ARUL) Phone: 91-413-2654429 (Off.) Fax: 91-413-2655715/2655265 91-413-2357492 (Res.) Email: [email protected] DECLARATION I hereby declare that the work presented in this thesis has been carried out by me under the guidance of Dr. V. Arul, Associate Professor, Department of Biotechnology, School of Life Sciences, Pondicherry University, Pondicherry, and this work has not been submitted elsewhere for any other degree. Pondicherry Date: R. SATISH KUMAR DEDICATED TO MY BELOVED PARENTS CONTENTS S.NO. CHAPTERS PAGE NO. 1 GENERAL INTRODUCTION 1 2 REVIEW OF LITERATURE 5 3 MATERIALS AND METHODS 29 4 ISOLATION AND SCREENING OF LACTIC ACID BACTERIA 59 FROM SOUTH INDIAN FERMENTED FOODS 5 PURIFICATION AND CHARACTERIZATION OF BACTERIOCIN 71 PRODUCED BY STREPTOCOCCUS PHOCAE PI80 6 PURIFICATION AND CHARACTERIZATION OF BACTERIOCIN 88 PRODUCED BY ENTEROCOCCUS FAECIUM MC13 7 PURIFICATION AND CHARACTERIZATION OF BACTERIOCIN 101 PRODUCED BY LACTOBACILLUS PLANTARUM AS1 8 IN VITRO CHARACTERIZATION OF LACTIC ACID BACTERIA 114 STRAINS FOR PROBIOTIC CHARACTERISTICS 9 LACTOBACILLUS PLANTARUM AS1 BINDS TO CULTURED 126 HUMAN INTESTINAL CELL LINE HT-29 AND INHIBITS CELL ATTACHMENT BY ENTEROVIRULENT BACTERIUM VIBRIO PARAHAEMOLYTICUS 10 LACTOBACILLUS PLANTARUM AS1 ISOLATED FROM SOUTH 140 INDIAN FERMENTED FOOD KALLAPPAM SUPPRESS 1, 2- DIMETHYL HYDRAZINE (DMH) INDUCED COLORECTAL CANCER IN MALE WISTAR RATS 11 SUMMARY 158 12 REFERENCES 161 13 PUBLICATIONS 200 ACKNOWLEDGEMENTS Foremost, I would like to express my heartfelt gratitude to my supervisor Dr. V. Arul, Associate Professor, Department of Biotechnology for the continuous support of my Ph.D., study and research, for his patience, motivation, enthusiasm, and immense knowledge. His guidance helped me throughout my research and writing thesis. Besides my supervisor, I would like to thank my doctoral committee members: Prof. Priya Davidar and Dr. N. Arumugham, for their encouragement, insightful comments, and hard questions. I express my sincere gratitude to Prof. N. Sakthivel, Head, Department of Biotechnology for extending lab facilities and valuable suggestions. My special thanks go to Dr. C. Thirunavukarasu, Assistant Professor, Department of Biochemistry and Molecular Biology, for his suggestions and guidance in animal studies. I am thankful to Prof. S. Jayachandran, Dr. Sudhakar, Dr. Hanna Rachel Vasanthi, Dr. Prashant, Dr. Arun Kumar Dhayalan, Dr. Venkateswara Sarma, and Mr. V. Balasubramanian who have been influential in all my academic pursuits. I thank my fellow labmates: Dr. P. Kanmani, Mr. N. Yuvaraj, Mr. K.A. Paari, Mr. V. Pattukumar and Mr. Venkatesh, for the stimulating discussions, immense co-operation, emotional support, and for all the fun we had in the last four years. I genuinely thank my seniors, Dr. A. Gopalakannan, Dr. S. Isaac Kirubakaran, Dr. Krishnaveni, Dr. P. Ravindra Naik, Dr. S. Vaithinathan, Dr. N. Badrinarayanan and colleagues Mr. G. Raman, Mr. Jean Cletus, Mr. Kennedy, Mr. Saranathan, Mr. Abhijith, Mr. Aezaj, Mr. Wasim, Mr. Abid, Mr. Anand, Mr. Suresh, Mr. Manoj, Ms. M. Revathi, Ms. P. Lalitha, Ms. Moushmi Priya, Ms. Asha, Ms. Pathma, Ms. Veena, Ms. Gokulapriya, and Ms. Sonia for their immense co-operation and valuable support. I also thank our office staffs, Mr. Ramalingam, Mr. C. Balakrishnan, Mr. Vadivel, Ms. Sarala, Ms. Vinothini, Mr. Meiappan, and Ms. Muthammal for their co-operation and help. I gratefully acknowledge the monetary support given by Indian Council of Medical Research, New Delhi in the form of Junior/Senior Research Fellowship and Department of Biotechnology, New Delhi for project funding. I would like to thank Central Instrumentation Facility (CIF), Pondicherry University for providing assistance in using necessary instruments. I wish to thank my brother Mr. Senthil Kumar, sisters Ms. Kavita, Ms. Krishna Veni and their kids Harshitha, Siddhanth for providing a loving environment for me. I wish to thank my parents, Ms. Subbulakshmi Ramraj and Mr. K.S. Ramraj for showering with love and care throughout my life. To them I dedicate this thesis. Finally, I would like to thank everybody who was important to the successful realization of thesis, as well as expressing my apology that I could not mention personally one by one. Date: R. Satish Kumar LIST OF ABBREVIATIONS CFU Colony Forming Units AU Arbitrary Unit CFCS Cell Free Culture Supernatant cm Centimeter DNA Deoxyribose Nucleic Acid dNTP 2’ deoxynucleotide 5’ triphosphate EDTA Ethylene Diamine Tetra Acetic acid MRS de Man Rogosa and Sharpe SDS Sodium Dodecyl Sulfate PBS Phosphate Buffered Saline rpm Revolution Per Minute TEMED N, N , N - Tetramethylethylenediamine APS Ammonium Per Sulphate PCR Polymerase Chain Reaction UV Ultra Violet bp Base pairs g/l Gram per liter h Hours kDa Kilo Dalton V Volt μl Microliter μM Micromolar mg/l Milligram per liter min Minutes ml Milliliter mM Millimolar mm Millimeter nm Nanometer OD Optical Density w/v Weight per volume v/v Volume per volume N Normality s Second CHAPTER 1 GENERAL INTRODUCTION
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