This research aims at analyzing the antioxidant concentration and activity of 60 Jordanian crops including fruits, vegetables, and wild plants. Antioxidant quantities were analyzed using two analytical methods: total flavonoids and Folin Ciocalteu procedures, while antioxidant activities were analyzed using cupric ion reducing capacity (CUPRAC) as well as the free radical 2,2-dipicrylhydrazyl (DPPH) methods. The highest polyphenol content (M catechin/100 g fresh crop) was observed in rosemary (101.339 ± 0.501). In addition, the highest total flavonoid content (mg rutin/100 g fresh crop) of the analyzed was 5.397 ± 0.044 for parsley curly. Furthermore, sage showed the highest antioxidant activity (mg trolox/100 g fresh crop) (2.906 ± 0.019). On the other hand, DPPH radical scavenging activity % ranged from 1.567 ± 1.193 for green beans to 92.300 ± 1.015 for yellow sweet pepper. Also, DPPH radical scavenging activity (mg ascorbic acid/100 g fresh crop) was the highest (622.562 ± 9.093) for jujube. The analyzed Jordanian crops are considered sources of antioxidants. Values found by our research team are comparable with those found by other teams for some crops and different for others.

Worldwide, and in Jordan specifically, date palm fruit production has been steadily increasing. Recently, various dates extracts have been used functionally as antioxidants or anticancer agents. In addition, Jordanian date palm fruit of Barhi variety at two maturity stages (Rutab) and (Tamr) inhibited chemically-induced mammary cancer in animal model. The aim of this study is to strengthen the scientific evidence on the effect of dates on mammary cancer via assessing the effect of different concentrations of water extracts of three varieties of dates grown in Jordan (Barhi, Belle Huwaimil, and Medjool) at two maturity stages (Rutab and Tamr) on the viability of MCF-7 breast cancer cell line. The effects of different extracts on MCF7 inhibition/proliferation was analyzed using MTT assay. Percentage of inhibition was calculated. The most effective concentration was 100 mg/ml for all varieties. At this concentration, Medjool variety at the Tamr stage exhibited the highest inhibition. At the 12.5 and 25 mg/ml concentrations of the extracts, the most effective date palm fruit varieties were Belle Huwaimil and Barhi at the Tamr stage respectively. At lower concentrations (3.125 and 6.25 mg/ml), Medjool at the Tamr stage and Belle Huwaimil respectively were the most effective extracts were Barhi at the Tamr and Rutab stages were the least effective (P=0.000**). It is concluded that water extract of palm fruit reduced MCF-7 cell viability.

Background: This study aimed to evaluate the knowledge, attitudes, and behavior (KAB) of the Jordanian society toward nutrition and diet during the COVID-19 era. Design and methods: This study is an observational, crosssectional study using a structured, validated, reproducible, selfadministered online Arabic questionnaire. KAB of the study participants was assessed via a web-based, structured, validated, reproducible Arabic questionnaire. The tool for the assessment of the KAB was composed of 33-closed-ended multi-answer questions. Results: A total of 672 people were surveyed, 70.2% were between 18 and 34, and 69.5% were females. Participants have paid little attention to the healthfulness of their diet in the last year. The majority of participant's attitudes towards using different approaches to manage weight in the next year were: eating smaller portions for weight management, tracking to maximize the amount of time of physical activity, and substituting lowercalorie foods for full-calorie alternatives. Only tenth of participants utilize the time to perform physical activity. The majority made changes to their diet and exercise, and strictly follow commitment in connection with planning for the following year. Conclusions: Educators, legislatives, food manufacturers, household heads, and policymakers are called upon to improve Jordanians’ KAB on nutrition and diet. Furthermore, Jordanian nutrition and diet behavior can be invested to improve the dietary interventions designed by nutrition and dietetics professionals.