Authors: Dr. J. John Peter Paul and Ms. V. Sangeetha

ISBN: 978-81-995936-6-4

DOI: https://doi.org/10.59646/524

Date of Publication: December 09, 2025

About the Book: 

The global marine environment represents the single largest reservoir of untapped biological and chemical diversity. Within this rich biome, marine macroalgae, particularly the Rhodophyta (Red Algae), are increasingly recognized as bio-factories for novel compounds with significant potential in pharmacology, functional food, and green nanotechnology.

Jania ungulata (Yendo) Yendo is a ubiquitous and ecologically vital member of the articulated coralline algae, forming critical calcified structures in tropical and subtropical coastal zones. However, the comprehensive potential of this species is often obscured by taxonomic uncertainty and the challenge of fully characterizing its complex secondary metabolites.

This book addresses these challenges by employing a holistic, multi-disciplinary approach, integrating modern molecular and analytical techniques to unlock the full scope of Jania ungulata‘s biological and biotechnological value. It transitions the study of this specific alga from foundational biology to cutting-edge applied science, providing a new paradigm for marine resource investigation.

The Integrated Research Scope

The volume is structured around four distinct yet interconnected scientific pillars:

I. Foundation: Molecular Systematics (DNA Barcoding)

Accurate species identification is paramount to all subsequent research. This section details the application of DNA Barcoding techniques (using marker rbcL) to resolve the taxonomic ambiguities within Jania ungulata and related taxa, establishing an immutable molecular standard for identification.

II. Characterization: Phytochemistry and Bioactivity

The core of the book lies in exploring the chemical and functional properties of the alga. Detailed Phytochemical analysis reveals the profile of active compounds, including phenolics, flavonoids, and terpenes, which are the basis for its therapeutic potential. This is coupled with rigorous in vitro assays demonstrating potent Antibacterial activity against key human pathogens and significant Antioxidant capacity which is crucial for addressing antibiotic resistance.

III. Application: Nanobiotechnology

Building upon its innate biological activity, the book culminates in the application of Jania ungulata extracts as eco-friendly, cost-effective agents for Nanobiotechnology. This pioneering section investigates the green synthesis of metallic nanoparticles (e.g., silver nanoparticles) using the algal metabolites as both reducing and stabilizing agents. This work offers a sustainable pathway for producing new nanomaterials for targeted drug delivery and biomedical applications.

Intended Audience and Contribution

This book is intended as an essential reference for Phycologists, Marine Biotechnologists, Natural Product Chemists, and Nanoscientists seeking to integrate molecular identification with advanced material science. It is our sincerest hope that this inter-disciplinary study of Jania ungulata will not only advance the fundamental understanding of coralline algae but also accelerate its translation from an ecologically significant organism to a commercially viable and sustainable source of novel bioproducts.