Ginger waste as a potential feedstock for a zero-waste ginger biorefinery: A review

Natthamon Inthalaeng, Yang Gao, Javier Remon Nunez, Thomas Iain James Dugmore, Mustafa Zafer Ozel, Allyn Sulaeman, Avtar Singh Matharu

Research output: Contribution to journalReview articlepeer-review


Ginger for consumption and use in industrial applications such as essential oil and oleoresin extraction is growing globally. There will be increased volumes of ginger waste (rhizomes, stems and leaves) in the coming years. However, the valorisation of ginger waste is limited in the literature beyond its use as a ginger meal for animal feed. Herein, this review consolidates the literature on ginger waste within the context of developing a zero-waste ginger biorefinery that yields chemicals, materials and (bio)energy for emerging bio-based markets and applications. Green extraction technologies are reported, some are at an industrial scale for processing fresh ginger but which could be re-used to obtain a second crop of oil or oleoresin. The application of ginger waste to produce potential value-added products such as anti-microbial materials, environmental remediation agents, supercapacitors, bioenergy and heterogeneous catalysts is presented. Limitations based on logistics, feedstock, processing technology and final output are discussed.
Original languageEnglish
JournalRSC Sustainability
Early online date16 Dec 2022
Publication statusE-pub ahead of print - 16 Dec 2022

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