Volume 77, Issue 4 e202400224
REVIEW

Enzymatic Debranching of Starch: Techniques for Improving Drug Delivery and Industrial Applications

Pankaj Bhatt

Pankaj Bhatt

Lloyd Institute of Management and Technology, Plot No. 11, Knowledge Park-II, Greater Noida, Uttar Pradesh, India

Department of Pharmaceutical Sciences, Gurukul Kangri (Deemed to be University), Haridwar, Uttarakhand, India

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Vipin Kumar

Corresponding Author

Vipin Kumar

Department of Pharmaceutical Sciences, Gurukul Kangri (Deemed to be University), Haridwar, Uttarakhand, India

Correspondence: Vipin Kumar ([email protected]) | Mukesh Kumar ([email protected]) | Vinoth Kumarasamy ([email protected]) | Vetriselvan Subramaniyan ([email protected])

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Suruchi Singh

Suruchi Singh

Accurate College of Pharmacy, Greater Noida, Uttar Pradesh, India

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Sakshi Garg

Sakshi Garg

Department of Pharmacy, Banasthali University, Jaipur, Rajasthan, India

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Mukesh Kumar

Corresponding Author

Mukesh Kumar

Department of Botany and Microbiology, Gurukul Kangri (Deemed to be University), Haridwar, Uttarakhand, India

Correspondence: Vipin Kumar ([email protected]) | Mukesh Kumar ([email protected]) | Vinoth Kumarasamy ([email protected]) | Vetriselvan Subramaniyan ([email protected])

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Ling Shing Wong

Ling Shing Wong

Faculty of Health and Life Sciences, INTI International University, Nilai, Malaysia

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Vinoth Kumarasamy

Corresponding Author

Vinoth Kumarasamy

Department of Parasitology, Medical Entomology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, Kuala Lumpur, Malaysia

Correspondence: Vipin Kumar ([email protected]) | Mukesh Kumar ([email protected]) | Vinoth Kumarasamy ([email protected]) | Vetriselvan Subramaniyan ([email protected])

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Shilpa Pahwa

Shilpa Pahwa

Lloyd Institute of Management and Technology, Plot No. 11, Knowledge Park-II, Greater Noida, Uttar Pradesh, India

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Vetriselvan Subramaniyan

Corresponding Author

Vetriselvan Subramaniyan

Department of Medical Sciences, Sunway University, Subang Jaya, Selangor, Malaysia

Correspondence: Vipin Kumar ([email protected]) | Mukesh Kumar ([email protected]) | Vinoth Kumarasamy ([email protected]) | Vetriselvan Subramaniyan ([email protected])

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First published: 12 March 2025

Funding: The authors received no specific funding for this work.

ABSTRACT

Starch is a biomacromolecule comprising glucose units linked together and is one of the most widely sourced biomacromolecules from plants because of its easy availability and versatility. However, high water solubility and rapid degradation restrict the application of starch in some areas, such as drug delivery. This review describes an enzymatic debranching methodology for enhancing the properties of starch and for improving its performance in both drug delivery applications and various industrial uses. Enzymatic debranching, with enzymes such as pullulanase and isoamylase, targets the branching points in starch chain parts. The enzymes cleave the internal covalent bonds within amylopectin branches. The final product of the reaction is a linear short-chain glucan. As a result of the enzymatic debranching reaction, large changes in digestibility and molecular weight are observed; the degree of branching decreases; the solubility is modified; viscosity characteristics are affected; and gelatinization is also affected. These changes make debranched starch suitable for use in various types of drug delivery systems, such as sustained release formulations and targeted delivery systems. By properly controlling both the debranching time and the treatment conditions, the desired properties of modified starch can be achieved. Enzymatically debranched starch is used in the food industry for enhanced textural and stabilizing properties and in the paper and textile industries to increase strength and viscosity. In addition, debranched starch can be used as a biodegradable packaging material and as a renewable source in biofuels. This review discusses recent developments concerning the enzymatic debranching of starch, describes the enzymes and techniques applied, their effects on the structure and properties of the starch obtained, and the value chain applications tested. This study provides a clear overview of how enzymatically debranched starch can play a role in the innovation of drug delivery systems and various industrial processes.

Conflicts of Interest

The authors declare no conflicts of interest.

Data Availability Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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