Screening Malaysian edible bird’s nests for structural adulterants and geographical origin using Mid-Infrared – Attenuated Total Reflectance (MIR-ATR) spectroscopy combined with chemometric analysis by Data-Driven – Soft Independent Modelling of Class Analogy (DD-SIMCA)

•Edible bird’s nest (EBN) is a high economic value product.•Adulteration of EBN is quite common in recent years due to its value.•Rapid technique is required for the EBN authenticity and traceability.•Combination of IR-ATR spectroscopy and DD-SIMCA is very useful as the rapid screening technique.