Valorizing potato peel waste: an overview of the latest publications

Acid Liquefaction of Potato (Solanum tuberosum) and Sweet Potato (Ipomoea batatas) Cultivars Peels – Pre-Screening of Antioxidant Activity/Total Phenolic and Sugar Contents

“…In addition, potato peel, whether of the regular or sweet variety, is also known for possessing several antioxidants in its chemical composition. These compounds appeared mostly as polar molecules with phenolic acid moieties (e.g., chlorogenic, caffeic, pcoumaric, and ferulic acids) (Dos Santos et al 2016a). Such compounds are highly prone to migrate to the water extract, and more so, if carboxylic acids are present in the carboxylate form.…”

Phenolic compounds in potato (Solanum tuberosum L.) peel and their health‐promoting activities

“…Interest of consumers in natural compounds possessing health benefits over the synthetic ones have been increased, particularly from the wastes of the potato industry. A recent shift in the interests of scientific community towards PPW valorisation in this millennium is evidenced by a large number of peer‐reviewed scientific research publications focusing on the issues related to environment friendly sustainable management of PPW (Dos Santos et al ., ).…”

“…Processing of one tonne of potato generates approximately 0.16 tonnes of solid waste (Pathak et al ., ). The large‐scale PP generated as waste from the production of processed potato products can serve a good source of phenolic compounds (Dos Santos et al ., ).…”

Proximal composition, bioactive compounds and biorefinery approach in potato tubers of Solanum tuberosum Group Phureja: a review

“…As mentioned above, several researchers suggest that potato peel is a valuable source of bioactive compounds and nutrients, including antioxidants, dietary fibre, pigments, vitamins and minerals (Akyol et al , ; Fritsch et al , ; Priedniece et al , ; Pathak et al , ). Some approaches have recently proposed the valorisation of this waste through fermentation routes, which can provide industrial enzymes and biofuels as a promising source of energy (Galhano dos Santos et al , ; Gebrechristos & Chen, ). Other approaches include the production and use of anthocyanins and carotenoids in the food colouring industry.…”

“…The massive waste generation during industrial processing of potato tubers has drawn attention, and some alternatives have been developed for its sustainable use. In this sense, strategies for the valorisation of those residues have been explored, and applications including the use of such wastes as a source of ingredients for the food and pharmaceutical industries and their utilisation for energy production, and animal feed have been explored (Galhano dos Santos et al , ; Gebrechristos & Chen, ; Pathak et al , ). Researchers have shown that potato processing wastes can be an important source of compounds such as proteins, starch, glycoalkaloids (Priedniece et al , ; Gebrechristos & Chen, ), dietary fibre (Schieber & Saldaña, ; Scharf et al , ) and phenolic compounds (Singh & Saldaña, ; Singh et al , , ; Wijngaard et al , ; Akyol et al , ; Kumari et al , ).…”