Algal Biotechnology And Environment

Algal Biotechnology And Environment
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Algal Biotechnology And Environment

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Publisher: IK International
ISBN: 9789381141717
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Preface Algae are a large and diverse group of simple, autotrophic organisms, ranging from unicellular to multicellular forms, such as the giant kelps that grow upto 70 meters in length. The largest and most complex marine forms are called seaweeds. The prokaryotic cyanobacteria commonly referred to as blue-green algae were traditionally included as algae in older textbooks but they are now considered to be bacteria. However, still large numbers of plant biologists use both the terms frequently. Algae are found in the fossil records dating back to approximately 3 billion years in the Precambrian. Fossilized filamentous algae from the Vindhya basin have been dated back to 1.6 to 1.7 billion years ago. Algae occur widely in aquatic habitats ocean, rivers, lakes and temporary water bodies both in fresh and saline waters and on land surface wherever moisture is available. They serve as primary food to a large number of small animals in ocean and other aquatic systems. They are photosynthetic hence enrich the environment with oxygen. Algae serve as a source of food, feed, fertilizer, pigments and their extracts are used in various types of industries such as ice cream, toothpaste, textile printing, pharmaceuticals, nutraceuticals, packaging, meat processing, chocolate making, tomato ketchup and several other industries. Some species of algae are extensively used for wastewater treatments. Recently algae have been found as an excellent source of biodiesel and bioethanol. Algae can be used for carbon dioxide capture from power plants and various other high emission industries. Algal Biotechnology and Environment includes some of the papers presented by leading phycologists of the world during the International Conference on Applied Phycology Algae in Biotechnology and Environment held at New Delhi, India. The major thrust is on community analysis, technological improvement in product harvesting, e.g., agar-agar and astaxanthin phycoremediation, wastewater treatment, biofertilizer, algal diversity in diverse habitats and related topics. The publication of this book was delayed due to several factors which was beyond our control. This book provides a wealth of information for all those studying or working with algae. We are confident that this book would find widespread readership. We thank Dr. Pooja Baweja, M. Arunjit Singh, E. Geetanjali, Savindra Kumar, Salam Sonia Devi, Gaurav Kumar, Nitin Pipralia, Arvind K. Bharadwaj, Priyanka Verma and Vivek Chopra research students of Marine Biotechnology Laboratory, Department of Botany, University of Delhi for their help during the compilation of this book. Dinabandhu Sahoo B.D. Kaushik
Contents Preface 1. Effects of Temperature and Ammonium on Growth, Pigment Production and Nitrogen Uptake by Four Species of Porphyra Bangiales, Rhodophyta Native to the New England Coast Jang K. Kim, George P. Kraemer, Christopher D. Neefus, Ik Kyo Chung and Charles Yarish
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2. Improvement of Gracilaria Agar Solubility by Acid Treatments Hirotaka Kakita, Hiroshi Kamishima, Anong Chirapart and Masao Ohno
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3. Seaweed Community Analysis of a Rocky Shore for the Sustainable Seaweed Integrated Aquaculture System SSIAS in Korea