Shellac-based coating makes pulp materials suitable for food without use of petroleum-based polymers or metals

Researchers at the School of Science, Mae Fah Luang University, Thailand and the School of Engineering and Materials Science, Queen Mary University of London, U.K., have developed a shellac-based coating to improve the gas barrier properties of a recyclable, compostable and sustainably sourced packaging material to make it suitable for instant, dehydrated, frozen and chilled foods.