Abstract
Plenty of black cumin cake was generated as a natural waste material after pressing the oil. Nigella sativa (black cumin) seeds and cakes are of precious nutritional value as they contain proteins, phenolics, essential amino acids, and bioactive compounds. Owing to their antioxidant properties, scientists and food manufacturers have extensively developed them. Notably, global awareness among consumers about the benefits of innovative food ingredients has been increased. Meanwhile, it has to be noted that vast amounts of cake by-products are not effectively utilized, which might cause economic loss and environmental consequences. This review aimed to highlight the antioxidant abilities, extraction, characterization, functional characteristics, and utilization of active peptides acquired from black seed oil cake. This overview would critically evaluate black seed cake proteins, plentiful in bioactive peptides that might be utilized as valuable additives in feed, food, pharmaceutical, and cosmetic industries. The addition of bioactive peptides to restrain the oxidation of fat-based products and preserve food safety is also addressed.
Highlights
Awareness toward the use of medicinal plants in the prevention and treatment of different diseases has received considerable attention because they are safe with minimal or no side effects
Similar trends were recorded by El-Deek et al [90], who confirmed that black cumin cake protein could be utilized up to 50% in the broiler chicks feeding with no side impact on growth, meat quality, feed eating, conversion rate, and safety
Zeweil et al [26] evaluated the impact of black cumin cake on the growth parameters, dietary digestion, and blood properties of white New Zealand rabbits by partial or complete substitution with soybean cake. They used 0, 6, 12, and 24% of the black cumin cake. They found that rabbits fed on 12% black cumin cake gained more overall weight than the control group, with a 3.7% increase in feed conversion rate
Summary
Awareness toward the use of medicinal plants in the prevention and treatment of different diseases has received considerable attention because they are safe with minimal or no side effects. Cumin seeds cake is an excellent source of protein, fibers, carbohydrates, vitamins, phenolic, and antioxidants that may benefit human health [12, 13]. Discovering low-cost, high-quality protein is a crucial mission for food scientists [23] In this respect, oilseed cake or deoiled part could effectively be employed as an essential source of protein to enhance the food products [24]. Its utilization in various food products has increased in recent years because of its health benefits It is mainly grown on small plots of land in several parts of the world. Black seed may have chemopreventive effects against different types of cancer
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