scholarly journals Edible Flowers: Antioxidant Compounds and Their Functional Properties

Horticulturae ◽  
2021 ◽  
Vol 7 (4) ◽  
pp. 66
Author(s):  
Nadhila B. B. Prabawati ◽  
Viki Oktavirina ◽  
Miguel Palma ◽  
Widiastuti Setyaningsih

Edible flowers have been widely consumed for ages until now. The attractive colors and shapes, exotic aroma, and delightful taste make edible flowers very easy to attain. Moreover, they also provide health benefits for consumers due to the unique composition and concentration of antioxidant compounds in the matrices. Knowing the bioactive compounds and their functional properties from edible flowers is necessary to diversify the usage and reach broader consumers. Therefore, this reported review could be useful for functional product development, engaging the discussed edible flowers. We present a comprehensive review of edible flower composition and the functional properties of their antioxidant compounds, mainly phenolics.

2019 ◽  
Vol 8 (1) ◽  
Author(s):  
Vikas Kumar ◽  
Sheenam Suri ◽  
Rasane Prasad ◽  
Yogesh Gat ◽  
Chesi Sangma ◽  
...  

2021 ◽  
Author(s):  
Pradip Debnath ◽  
Sayed Koushik Ahmad ◽  
Rezwan Ahmed Mahedi ◽  
Amlan Ganguly ◽  
Kishore Kumar Sarker

2019 ◽  
Vol 95 (1) ◽  
pp. 8-18 ◽  
Author(s):  
Shikha Dhiman ◽  
Vikas Kumar ◽  
C. M. Mehta ◽  
Yogesh Gat ◽  
Sawinder Kaur

2020 ◽  
Author(s):  
Esther Shiau Ping Yap ◽  
Apiradee Uthairatanakij ◽  
Natta Laohakunjit ◽  
Pongphen Jitareerat ◽  
Punchira Vongsawasdi ◽  
...  

Abstract Dried and roasted chilies are used in many recipes due to higher pungency, especially in Asia. However, the roasting process is usually done on a pan, or wok without temperature control. Thus, this study aimed to evaluate the effects of different hot air oven drying temperatures (60, 80 and 100 °C), roasting temperatures (120, 140 and 160 °C) and times (30, 60, 120 min and at 12–13% moisture content (MC)) on the physicochemical changes in dried ‘Super Hot’ chili fruits. High antioxidant compounds that have health benefits were detected in dried chili samples such as capsaicinoids, limonene, pinene, tocopherol, and oleic acid regardless of temperature and time of drying. Chilies dried at 60 °C until reaching 12–13% MC (1440 min) had better color retention and DPPH• values. In contrast, the contents of bioactive compounds were the highest at 160 °C, despite having a darker red color. This result showed that chilies dried or roasted at high temperatures allowed the bioactive compounds to be released from the bound state and can be easily absorbed during consumption. Thus, hot air oven roasting at 160 °C can be applied to improve bioactive compounds and antioxidant activity in ‘Super Hot’ chili for health benefits and taste.


2021 ◽  
Vol 11 (1) ◽  
pp. 430
Author(s):  
Hassan Hadi Mehdi Al Rubaiy ◽  
Ammar Altemimi ◽  
Ali Khudair Jaber Al Rikabi ◽  
Naoufal Lakhssassi ◽  
Anubhav Pratap-Singh

The present study proposes microwave-assisted extraction as a sustainable technique for the biosynthesis of bioactive compounds from rice fermented with Aspergillus flavus (koji). First, fermentation conditions (i.e., pH from 3–12, five temperatures from 20–40 °C, and four culture-fermentation media viz. wheat, wheat bran, malt and rice) were optimized for producing microbial bioactive compounds. Microwave extraction was performed at 2450 MHz and 500 W for 20, 30, and 40 s with seven solvents (distilled water, ethyl acetate, hexane, ethanol, chloroform, diethyl ether, and methanol). The obtained results revealed that ethyl acetate is the most appropriate solvent for extraction. Effects of this ethyl acetate extract were compared with a commercial synthetic antioxidant. Antioxidant properties were enhanced by preventing the oxidation of the linoleic acid (C18H32O2) with an inhibition rate (antioxidant efficacy) of 73.13%. Notably, the ferrous ion binding ability was marginally lower when compared to the disodium salt of ethylenediaminetetraacetic acid (EDTA). Additionally, the obtained total content of phenolic compounds in the ethyl acetate extract of fermented rice (koji) by Aspergillus flavus was 232.11 mg based on gallic acid/mL. Antioxidant compounds in the ethyl acetate extract of fermented rice showed stability under neutral conditions, as well as at high temperatures reaching 185 °C during 2 h, but were unstable under acidic and alkaline conditions. The results demonstrate the efficacy of novel microwave-assisted extraction technique for accelerating antioxidant production during rice fermentation.


2021 ◽  
Vol 71 (1) ◽  
Author(s):  
Trishala Gopikrishna ◽  
Harini Keerthana Suresh Kumar ◽  
Kumar Perumal ◽  
Elavarashi Elangovan

Abstract Purpose Fermented soybean foods (FSF) is popularly consumed in the South-East Asian countries. Bacillus species, a predominant microorganism present in these foods, have demonstrated beneficial and deleterious impacts on human health. These microorganisms produce bioactive compounds during fermentation that have beneficial impacts in improving human health. However, the health risks associated with FSF, food pathogens, biogenic amines (BAs) production, and late-onset anaphylaxis, remain a concern. The purpose of this review is to present an in-depth analysis of positive and negative impacts as a result of consumption of FSF along with the measures to alleviate health risks for human consumption. Methods This review was composed by scrutinizing contemporary literature of peer-reviewed publications related to Bacillus and FSF. Based on the results from academic journals, this review paper was categorized into FSF, role of Bacillus species in these foods, process of fermentation, beneficial, and adverse influence of these foods along with methods to improve food safety. Special emphasis was given to the potential benefits of bioactive compounds released during fermentation of soybean by Bacillus species. Results The nutritional and functional properties of FSF are well-appreciated, due to the release of peptides and mucilage, which have shown health benefits: in managing cardiac disease, gastric disease, cancer, allergies, hepatic disease, obesity, immune disorders, and especially microbial infections due to the presence of probiotic property, which is a potential alternative to antibiotics. Efficient interventions were established to mitigate pitfalls like the techniques to reduce BAs and food pathogens and by using a defined starter culture to improve the safety and quality of these foods. Conclusion Despite some of the detrimental effects produced by these foods, potential health benefits have been observed. Therefore, soybean foods fermented by Bacillus can be a promising food by integrating effective measures for maintaining safety and quality for human consumption. Further, in vivo analysis on the activity and dietary interventions of bioactive compounds among animal models and human volunteers are yet to be achieved which is essential to commercialize them for safe consumption by humans, especially immunocompromised patients.


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