This is the first comprehensive review on methods and materials for use in optical sensing of
pH values and on applications of such sensors. The Review starts with an introduction that …

Background The growing environmental concern of plastic packaging disposal has led to
the innovation of biodegradable biopolymers. Consumer demand and health concern further …

Sustainable multifunctional halochromic nanocomposite films (“smart films”) were prepared
using a casting method. Natural pigments (saffron or red barberry anthocyanins) and TiO 2 …

Background The recent rise in awareness of safe food and changing consumer attitudes
have brought many innovations in packaging technology. Consumers are increasingly …

Anthocyanins are natural colorants with excellent antioxidant, antimicrobial and pH-sensitive
properties. In recent years, increasing attention has been paid to the development of active …

Recently, interest in smart packaging, which can show the color change of the packaging
film according to the state of the food and evaluate the quality or freshness of the packaged …

Anthocyanins, natural water-soluble colorants, have increasingly gained attention owing to
their attractive features such as diverse colors at varying pHs, biocompatibility, and potential …

Background In recent years, research on food packaging is gaining momentum, primarily
being driven by consumer preferences to food quality and food safety. Also, as food …

Red cabbage anthocyanins are of great interest as natural food colorants in the food
industry; as they represent the color over a broad range of pH-values compared to …

This study aimed to develop intelligent packaging films possessing pH-sensitive and
mechanical stability for cassava starch-based substrates using red cabbage extracts by a …