Traditional plants with antioxidant properties in clinical trials-A systematic review.

There is a trend toward the use of natural substances present in plants and vegetables. In general, foods rich in antioxidants are complex matrices; therefore, understanding its absorption effects is extremely relevant to know its bioactive potential. Thus, this systematic review focused on clinical trials involving plants (or compounds) registered on the National List of Medicinal Plants of Interest to the Unified Health System (RENISUS) with antioxidant properties. Following the reporting guidelines of Preferred Reporting Items for Systematic Reviews and Meta-Analyzes studies of interest indexed in the PubMed and ClinicalTrials.gov databases were analyzed. Of the 59 clinical trials found, Allium sativum and Curcuma longa are the plant species with the highest percentage of clinical research. Prevention/attenuation of oxidative stress was one of the main antioxidant mechanisms indicated in the studies. The most tested compounds of the RENISUS plants in clinical trials were curcumin and soy isoflavone. In this review, we selected studies in advanced stages that highlight plants' value in optimizing antioxidant status; however, even with high-quality studies, it is not prudent to overstate the clinical efficacy of these plants.

Sustainability in the dairy industry: a systematic literature review.

The dairy industry can contribute to global food security in a sustainable way by efficiently converting milk into dairy ingredients and products, even though they are polluting on a large scale. In this context, this study aimed to conduct a systematic literature review on sustainable indicators and dairy industries. The methodology used has a qualitative and quantitative approach and its technical procedure was the systematic literature review. The bases of journals consulted, using the keywords "sustainability indicator" and "dairy industry" which resulted in 130 valid scientific articles. The main results show that the sustainability indicators in the dairy industry are emerging and lacking research; being found seven papers, that highlight 12 indicators of the environmental, 11 of the social and eight economic dimensions, that may be considered fragile and initial. The studied problems are related to wastewater treatment methods, electric power consumption, efficiency of the industrial plant, among others, and the benefits on the theme are related to solutions to the difficulties, such as electricity reduction, sustainable practices. Among others, it is concluded that the dairy industries address the sustainability theme since 2011, with an ambiguous trend, being found evidence of the fragility of the sustainability indicators was found, mainly in the initial stage of their conception, when considering holistic approach (triple bottom line).