Related Experiment Video
Updated: Jul 12, 2026
07:03
Reliable Method for Assessing Seed Germination, Dormancy, and Mortality under Field Conditions
Published on: November 6, 2016
Starch-Based Film Coatings as a Strategy to Preserve Seed Viability during Storage
Giovana A Parolin1,2, Matheus C R Miranda1, Tereza S Martins1
1Laboratory of Hybrid Materials-Chemistry Department, Federal University of São Paulo, Diadema, SP 09913-030, Brazil.
ACS Omega
|July 10, 2026
Summary
Sustainable starch-based seed coatings preserve viability during storage. These biodegradable films reduce water and oxygen diffusion, enhancing germination and vigor for crops.
Area of Science:
- Agricultural Science
- Materials Science
- Biotechnology
Background:
- Seed viability decreases during storage, impacting crop yields.
- Current seed coatings often use non-biodegradable materials or hinder germination.
Purpose of the Study:
- To develop and evaluate a sustainable, starch-based film coating for preserving seed viability.
- To assess the impact of different starch film formulations on seed storage and germination.
Main Methods:
- Corn starch films plasticized with glycerol and urea were prepared.
- Two formulations (A3 and A8) were selected based on physicochemical properties.
- Tomato seeds were coated and stored under monitored conditions for up to 240 days, with germination and vigor assessed.
Main Results:
- Both starch coatings (A3 and A8) significantly mitigated the decline in seed germination and vigor compared to uncoated seeds.
- The A3 formulation offered superior long-term protection due to its compact and thermally stable nature.
- The A8 formulation, being more hydrophilic, dissolved faster, promoting early seedling development.
Conclusions:
- Starch-based coatings act as semipermeable barriers, regulating water and oxygen diffusion during storage.
- The properties of starch films can be tuned to balance protection during storage and functional dissolution during germination.
- This study presents a biodegradable, low-cost, and eco-friendly platform for advanced seed coating systems applicable to various crops.
More Related Videos
Related Concept Videos
02:33Seed Structure and Early Development of the Sporophyte
Seed structures are composed of a protective seed coat surrounding a plant embryo, and a food store for the developing embryo. The embryo contains the precursor tissues for leaves, stem, and roots. The endosperm and cotyledons—seed leaves—act as the food reserves for the growing embryo.
01:05Bioavailability Enhancement: Drug Stability Enhancement and GI Retention
Improving a drug's stability in the gastrointestinal (GI) tract is paramount for enhancing its bioavailability and therapeutic effectiveness. Various strategies are employed to protect the drug from the harsh gastric milieu and to ensure its release and absorption at the desired site within the GI tract.Polymer coatings are one such method used to shield drugs from the stomach's acidic environment. By preventing premature drug release, these coatings improve the bioavailability of unstable...
01:26Methods of Controlling Food Spoilage
Food spoilage is caused by microbial growth or by chemical and physical changes, all of which affect the taste, texture, and safety of food.Temperature-Based PreservationRefrigeration at 0–4 °C slows microbial growth and enzyme activity, making it ideal for short-term storage. However, certain spoilage organisms—such as psychrotrophs like Listeria monocytogenes—can still proliferate at these temperatures. Freezing below -18 °C further slows biological processes by forming ice crystals, which...
01:27Principles of Food Preservation
Food spoilage results from microbial growth, enzymatic activity, and environmental factors that gradually degrade the sensory, nutritional, and safety qualities of food. Preservation techniques aim to slow or halt these processes to extend shelf life and maintain product quality.A key concept in food microbiology is the microbial growth curve, which includes four phases: lag, exponential (log), stationary, and death. During the lag phase, bacteria adjust to their environment without significant...
01:16Drug Product Stability
The long-term stability of drug products is critical to ensuring their quality, safety, and effectiveness over time. Stability directly influences a product's ability to maintain its intended characteristics, ensuring it performs as expected during its intended shelf life. Key attributes such as drug potency, impurities, dissolution, and other physicochemical measures of performance are tested to assess stability. These parameters indicate how well the product retains its quality over time and...
02:45Responses to Heat and Cold Stress
Every organism has an optimum temperature range within which healthy growth and physiological functioning can occur. At the ends of this range, there will be a minimum and maximum temperature that interrupt biological processes.