Species of unconventional food plants of the genus Sonchus are widely consumed in rural populations living in the Brazilian Atlantic Forest. This study investigated the nutritional composition of S. oleraceus, S. asper, and S. arvensis species. The centesimal composition was investigated according to the norms of the Association of Official Analytical Chemists, the occurrence and concentration of carotenoids and vitamins through High-Performance Liquid Chromatography, and minerals with the aid of atomic emission spectrometry in inductively coupled plasma. There was no significant difference between the water content found in the three species. However, S. asper showed higher concentrations of lipids (1.32 g/100 g), carbohydrates (0.34 g/100 g), total carotenoids (5.58 mg/100 g), and Ca (96.25 mg/100 g), while S. arvensis had the highest concentration of vitamins E (72.98 μg/100 g) and K (604.85 mg/100 g). S. oleraceus showed higher concentrations of Fe (23.74 mg/100 g). Statistically, fibers and ash presented the same proportions in S. asper and S. arvensis, as well as proteins in S. oleraceus and S. asper species. The availabilities of these vegetables together with their high nutritional value are important factors that contribute to ensuring food security for families that have these species in their diet.

Ora-pro-nóbis (Pereskia aculeata Mill.) is an unconventional vegetable found in the Brazilian Atlantic Forest and consumed, mainly by the rural population who lives in this biome. The present study investigated the nutritional value and contribution potential this species to the recommendations of daily nutrient intake for adults. Moisture and ash content were determined by gravimetry after oven drying and muffle incineration, respectively. Proteins were determined by the micro-Kjeldhal method; lipids by gravimetric lipids using soxhlet extractor; Total dietary fiber (TDF) by non-enzymatic gravimetry; Carotenoids and vitamin C by High Performance Liquid Chromatography (HPLC) with Diodes Array Detector; Vitamin E by HPLC and fluorescence detection; and minerals by inductively coupled plasma atomic emission spectrometry (ICP-AES). Ora-pro-nóbis presented concentrations of TDF (3.73 g 100 g -1 ), ash (0.96 g 100 g -1 ), lipids (1.45 g 100 g -1 ), protein (1.27 g 100 g -1 ), carotenoids (3.15 mg 100 g -1 ), total vitamin E (438.68 µg 100 g -1 ), Ca (427.08 mg 100 g -1 ), Mg (88.84 mg 100 g -1 ), Mn (3.46 mg 100 g -1 ), Fe (13.89 mg 100 g -1 ) and K (689.41 mg 100 g -1 ). The species was considered a source of TDF, a good source of Mg, Cu and K, and an excellent source of vitamin A, Ca, Mn, Fe and Se.

Although many native foods are part of the Brazilian diet, there is still limited information on their nutritional composition (Paula Filho et al., 2015a). However, the inclusion of information on nutritional composition becomes important to evaluate the supply of these food sources and to verify the possibility of nutritional adequacy of these foods in the diet (Paula Filho et al., 2015b). Erechtites valerianifolia (Wolf) DC. is an unconventional vegetable that belongs to the family Asteraceae and is widely distributed all the Brazilian Atlantic Forest biome. This vegetable is used as a food resource, specially by families inhabiting the rural area of this region, being commercialized in urban fairs as well (Barreira et al., 2015). Although its importance and use in the diets of many families is observed, up to the present time the nutritional composition of this vegetable is still little studied. Among works found on this species, stands out Wahab et al. (2015) who evaluated the nutritional value and bioactive components in samples of E. valerianifolia consumed by indigenous populations in Malaysia, these authors found high concentrations of β-carotene, carbohydrates and vitamin C in this species. Rosas-Romero & Saavedra (2005) observed that samples of E. valerianifolia collected in the District of Chapare, in Bolivia, presented antioxidant activity highly promising. As well, there is no record in the academic literature of some possible toxicity effect that the species may present, in this case, when there is, is eliminated by means of the preparation forms carried out by the families that consume this species. Considering the above, the present study investigated the centesimal analysis, content of carotenoids, vitamins (C and E) and minerals in samples of E. valerianifolia collected in natural environments of the Brazilian Atlantic Forest. 2 Material and methods 2.1 Obtaining of the samples Fertile samples of E. valerianifolia were obtained in November of 2012, in the region of Viçosa (20°45'14" S and 42°52'44" W), and identified by experts from the herbarium of the Federal

Wild mustard plant (Sinapis arvensis), Brassicaceae, is a wild vegetable found in forest area, domestic orchards and it is consumed by rural population. This study aimed to evaluate chemical composition (moisture, total dietary fiber, lipids, proteins, ash, carbohydrates and total energetic value), concentration of carotenoids, vitamins (C and E) and minerals (K, Ca, Mg, Cu, Fe, Zn, Mn, Na, Cr, Se and Mo) and the contribution by this vegetable to the recommendations of daily consumption of nutrients for adult individuals. Concentrations of provitamin A (252.21 RAE/100 g), Se (0.04 mg/100 g) and Fe (5.91 mg/100 g) stood out, in which this vegetable was considered as an excellent source for these nutrients. In addition, wild mustard was considered a good source of K (435.65 mg/100 g), Ca (123.25 mg/100 g) and Mn (0.40 mg/100 g) and source of Total Dietary Fiber (TDF) (3.20 mg/100 g), Mg (26.82 mg/100 g) and Cu (0.07 mg/100 g). Wild mustard stood out as source, good source or excellent source of the evaluated nutrients, and they may contribute to reduce nutritional deficiency of those nutrients in the populations living in the region where this vegetable occurs.