Phytochemical and nutrient/antinutrient interactions in cherry tomato (Lycopersicon esculentum) fruits

Abstract

The fruit of the cherry tomato (Lycopersicon esculentum (Solanaceae)) was analysed for mineral and antinutrient composition. Phosphorus (33.04 ± 0.21 mg/100g) was the most abundant mineral in the fruit, followed by calcium (32.04 ± 0.06 mg/100 g), and potassium (11.9 ± 0.1 mg/100 g) and manganese (9.55 ± 0.28 mg/100 g) were also present in appreciable quantities. Antinutrients, including phytate, glycoside, saponin and tannin, were screened and quantified. Phytate (112.82 ± 0.1 mg/100 g), glycoside (2.33 ± 0.00 mg/100 g), saponin (1.31 ± 0.00 mg/100g) and tannin (0.21 ± 0.00 mg/100 g) were present in the fruit but phlobatanin and glycosides with steroidal rings were not found. The calculated calcium:phytate ratio of the fruits was below the critical value and the calculated [calcium] [phytate]:[zinc] molar ratio was less than the critical value. The calcium:phosphorus ratio (0.97 mg/100 g) shows the fruit to be a good source of food nutrients, while the sodium:potassium value was less than 1. Ca/P ratio below 0.5 indicates deficiency of these minerals while Na/K ratio above 1 is detrimental because of excessive sodium levels. The results of the study generally revealed the fruit to be rich in minerals but containing insufficient quantities of antinutrients to result in poor mineral bioavailability.

Physicochemical Properties and Fatty Acid Profile of African Elemi Fruit Pulp Oil Compared with Palm Kernel Oil

“…Stearic acid (C18:0) acid is the predominant fatty acid in AEO with the value of 32.24%, followed by oleic acid (C18.1) with the value of 30.24% as shown in Table 3. This finding is in agreement with that of Oyetayo and Ibitoye [12] who reported on the protective effects of oils extracted from canarium fruit pulps and kernel. The values of oleic and stearic acids obtained in this research is comparable with that of palm oil with oleic value of 39.0 as reported by Ayoade et al [4].…”

“…Phytochemicals such as saponins, total alkaloid, flavonoid and tannins were determined using the methods described by Obadoni and Ochuko [10], Harborne [11], Oyetayo and Ibotoye [12] and Nwokonkwo [13], respectively.…”

Agromorphological Traits and Mineral Content in Tomato Accessions from El Salvador, Central America

“…Nevertheless, cherry tomato fruits, when consumed fresh, can make an important contribution to the diets of rural families, based on the levels of minerals reported here, primarily on the basis of trace elements and some macro-elements such as K, Mg, P and Na, according human requirements [49]. The results of the mineral evaluations of the tomato accessions in this study are similar to the reports of other authors [13,14,16], and we think that the cherry tomato in El Salvador and other countries is an option for helping decrease the mineral deficiencies affecting human health. For example, results suggest that 100 g of fresh tomato can supply from 5 to 15% of the daily K, P, Mg, Mn and Cu requirements, according to White and Broadley [49].…”

Dennettia tripetala seeds inhibit ferrous sulphate-induced oxidative stress in rat tissues in vitro

“…A wide spectrum of antioxidants present in pepper fruits includes vitamin C, phenol, and carotenoids [10]. Several studies have correlated the antioxidant activity of plant diets, comprising pepper, with their total phenol content [11][12][13].…”