Portable Electronic Nose System Can Discern Fruit Freshness | Be Korea-savvy

Portable Electronic Nose System Can Discern Fruit Freshness

(image: Korea Bizwire)

(image: Korea Bizwire)

BUSAN, May 25 (Korea Bizwire)A South Korean research team has succeeded in developing a portable electronic nose system that can sense the level of freshness of fruit at agricultural wholesale markets simply by smell.

Pusan National University said Monday that researchers had developed a nano-bioelectronic nose system that can detect the level of freshness of fruits simply by smell, without physical contact.

The electronic nose is designed to distinguish smell by imitating the olfactory organ of detection dogs, which are known for their sense of smell.

The problem, however, is that it’s not easy to realize such an olfactory organ since detection dogs typically have more than 2.2 million olfactory receptors.

The core of the research is the use of the genetic engineering-based eco-friendly biomaterial (M13 bacteriophage) instead of existing odorant receptors to discern the level of freshness of fruits.

The newly-developed nano-bioelectronic nose succeeded in identifying the level of freshness of fruit that deteriorate as time goes by, with the difference in the smell of peaches.

The research team said that the electronic nose, developed through a convergence study, was realized beyond the level of lab verification and can be applied in the field.

Lina Jang (linajang@koreabizwire.com)

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