Not available

Funder

Organizational Unit

Publications

Melon (Cucumis melo L.) by-products: Potential food ingredients for novel functional foods?

Publication . Silva, M.A.; Albuquerque, T.G.; Alves, R.C.; Oliveira, M.B.P.P.; Costa, H.S.

Background: Nowadays food wastes are a major concern. On the other hand, the demand for natural beneficial compounds to human health is increasing. Melon (Cucumis melo L.) is a very appreciated fruit, consumed all over the world, that contains large amounts of seeds and peel, which up to now are discarded. These by-products contain phytochemical compounds with great nutritional and functional potentials. Scope and approach: This review describes the scientific studies regarding nutritional, bioactive and anti-nutrients composition of melon by-products, as well as their main biological activities and industrial applications. These findings intend to contribute for future research concerning novel functional foods based on melon byproducts. Key findings and conclusions: Melon peel is a good source of minerals (potassium, sodium, magnesium, calcium) and phenolic compounds. It also contains carotenoids, namely lycopene and β-carotene. In turn, melon seeds are a good source of protein (15–36%) and fibre (7–44%). Melon seed oil is a good source of tocopherols and sterols (β-sitosterol, 0.06–289 mg/100 g oil), as well as phenolic compounds. It has an interesting fatty acid profile, very similar to soybean and sunflower oils. Moreover, melon by-products present different biological activities including antioxidant, anti-inflammatory, antidiabetic, antiulcer, antibacterial, and anti-angiogenic, fully justified by the presence of bioactive compounds. Therefore, these by-products can be considered good candidates for the development of novel functional foods, contributing to promote sustainability across food chain. Nonetheless, further research is needed, namely concerning clinical studies to fully support the development of evidencebased functional foods.

2020-01-01Journal article

Restricted access

Chapter 44 - Prickly pear

Publication . Albuquerque, T.G.; Pereira, P.; Silva, M.A.; Vicente, F.; Ramalho, R.; Costa, H.S.

Nowadays, consumers are increasingly interested in foods that are linked with health benefits, in addition to their nutritional composition. Prickly pear (Opuntia ficus-indica (L.) Mill.) is native to Mexico, but nowadays it is widely spread among other regions of the world, such as Africa, Australia, and the Mediterranean basin, due to its pleasant organoleptic features. Prickly pear belongs to the Cactaceae family, which includes over 1500 species of cacti. Moreover, it is gaining popularity among consumers due to the presence of bioactive compounds, namely polyphenols, vitamins, polyunsaturated fatty acids, carotenoids, and sterols that are associated with relevant functional and biological activities, such as antiinflammatory, antioxidant, and hypoglycemic properties, among others. In addition, this plant can also be used as a fence in gardens and fields and is useful in helping to combat desertification as it grows in arid and semiarid regions. Nowadays, it is widely used to manufacture food products, such as juices and jams, but it is also consumed as a fruit. Prickly pear is a promising source of phytochemicals, which can be useful for food, or in the cosmetics or pharmaceutical industries to develop new products with health-promoting properties, namely, functional foods, natural additives, or dietary supplements.

2020-09-11Book part

Restricted access