| 1 | Red | 12 | 2008–2016 | 22–156 | Open innovation, Food firms, SMEs, Low tech, Customer orientation, business process management, Knowledge management, R&D organization, Customer co-creation | Tardivo et al. (2017) | Drivers of OI in the food industry' |
| Galati et al. (2016) |
| Ku (2015) |
| Martinez et al. (2014) |
| Beckeman et al. (2013) |
| Filieri (2013) |
| Kumar et al. (2012) |
| Petroni et al. (2012) |
| Siedlok et al. (2010) |
| Wolfert et al. (2010) |
| Fortuin and Omta (2009) |
| Sarkar and Costa (2008) |
| 2 | Green | 8 | 2011–2019 | 104–183 | Open innovation, Innovation network, Innovation performance, Dynamic capabilities, Food sector, New product development, Eco-innovation | González-Moreno et al. (2019) | OI impact on food and beverage organization performance' |
| Triguero et al. (2018) |
| Santoro et al. (2017) |
| Bayona-Saez et al. (2017) |
| Seyfettinoğlu (2016) |
| Arcese et al. (2015) |
| Dries et al. (2014) |
| Enzing et al. (2011) |
| 3 | Blue | 6 | 2011–2017 | 49–241 | Food industry, Open innovation, Collaborative innovation strategies, Consumer research, Paradigm shift, Innovation partnerships, strategic alliances | Manzini et al. (2017) | New precursors of OI |
| Pellegrini et al. (2014) |
| Martinez (2014) |
| Moskowitz and Saguy (2013) |
| Saguy (2011) |
| Traitler et al. (2011) |
| 4 | Yellow | 3 | 2017–2019 | 2–125 | Knowledge exploitation, Knowledge exploration, Knowledge management, Network management, Open innovation, Value chain, Innovative design | Cillo et al. (2019) | Nuanced OI approaches in agriculture |
| Berthet et al. (2018) |
| Meynard et al. (2017) |