Optimum DNA Extraction Methods for Edible Bird's Nest Identification Using Simple Additive Weighting Technique

Area of Science:

• Molecular Biology
• Biotechnology
• Food Science

Background:

• Accurate DNA extraction is crucial for identifying the origin of edible bird's nest (EBN).
• Various DNA extraction methods exist, including conventional (SDS) and commercial kits (Qiagen, Wizard, NucleoSpin), each with pros and cons.
• Evaluating these methods based on efficiency, cost, and performance is essential for practical applications.

Purpose of the Study:

• To compare the performance of five DNA extraction methods for EBN origin identification.
• To determine the most suitable method considering efficiency, feasibility, cost, and speed.
• To develop and validate a hybrid DNA extraction method (SDS/Qiagen).

Main Methods:

• A simple additive weighting (SAW) technique was employed for method comparison.
• Five DNA extraction methods were evaluated: SDS, Qiagen, Wizard, NucleoSpin, and a hybrid SDS/Qiagen method.
• Performance metrics included DNA yield, purity, PCR amplifiability, handling time, and reagent safety.

Main Results:

• The hybrid SDS/Qiagen method demonstrated superior speed and cost-effectiveness compared to commercial kits.
• This hybrid method significantly improved DNA yield, purity, and PCR amplifiability over the conventional SDS method.
• Without considering cost, the Qiagen method was deemed most efficient and feasible, yielding the purest DNA with highest PCR amplifiability and shortest turnaround time.

Conclusions:

• The hybrid SDS/Qiagen method provides a practical, cost-effective, and rapid alternative for EBN DNA extraction.
• This developed method offers advantages over lengthy conventional processes and expensive commercial kits.
• The Qiagen method is the most efficient and feasible option when cost is not a primary concern.