2.4. Instrumental hardness measurement
The texture characteristics of rice-black bean cookies in terms of hardness and fracturability were
measured using a Stable Micro Systems TA-Hdi texture analyzer (Surrey, UK) fitted with a 5mm cylinder
probe. Hardness value was considered as the area under the curve obtained and the linear distance was
taken as an indication of fracturability. The studies were conducted at a pre-test speed of 1.0mm/s, test
speed of 0.5mm/s. distance of 5.0mm, and load cell of 50 kg.