Bioactive content of six passion fruit genotypes cultivated in southern Brazil

Passion fruit production in Brazil is concentrated in tropical regions, however, recently production has expanded to regions with temperate climate. Cultivar performance in different climate and soil can lead to variation in the contents of bioactive compounds in the juice and rind of the fruit. This study characterized the bioactive content of passion fruit rind and juice of six passion fruit genotypes (‘Catarina Roxo’, ‘Catarina’, ‘Urussanga’, ‘BRS Gigante Amarelo’, ‘BRS Rubi do Cerrado’, and ‘BRS Sol do Cerrado’) cultivated in southern Brazil. Phenolic, flavonoid, anthocyanin, carotenoid, and ascorbic acid contents and the antioxidant potential of each fruit portion from each genotype were evaluated. Fruit composition varied with genotype and evaluated tissue. Bioactive compound contents were greatest in the rind of ‘Urussanga’ and ‘Catarina’, whereas the juice of ‘BRS Sol do Cerrado’ and ‘Catarina Roxo’ had the greatest bioactive content. Given cultivar and tissue variability for bioactive content, postharvest use of passion fruit will determine the choice of cultivar to obtain a product with maximum bioactive compounds. Passion fruit genotypes evaluated in this study have shown to be potential sources of bioactive compounds. Fruit rind has the potential to be explored in the scientific and technological scope, due to its high amounts of phenolic compounds and antioxidant activity.

Effect of Modified Atmosphere Packaging (MAP) and UV-C Irradiation on Postharvest Quality of Red Raspberries

Red raspberries (Rubus idaeus L.) are highly appreciated by consumers. However, their postharvest shelf life scarcely exceeds 5 d under the refrigeration temperatures usually applied during commercialization, due to their high susceptibility to dehydration, softening and rot incidence. Thus, the objective of this study was to investigate the ability of UV-C radiation (UV1: 2 kJ m−2 and UV2: 4 kJ m−2), passive modified atmosphere packaging (MAP) with transmission rates (TR) for O2 and CO2 of 1805 mL d−1 and 1570 mL d−1 (MAP1), and 902 mL d−1 and 785 mL d−1 (MAP2), respectively, and the combination of both technologies to prolong raspberries’ shelf life at 6 °C. Their influence on respiration, physicochemical parameters, and microbiological and nutritional quality was assessed during 12 d of storage. The combination of 4 kJ m−2 UV-C radiation and a packaging film with O2 and CO2 transmission rates of 902 mL d−1 and 785 mL d−1, respectively, produced a synergistic effect against rot development, delaying senescence of the fruit. The UV2MAP2 and MAP2 samples only showed 1.66% rot incidence after 8 d of storage. The UV2MAP2 samples also had higher bioactive content (1.76 g kg−1 of gallic acid equivalents (GAE), 1.08 g kg−1 of catechin equivalents (CE) and 0.32 g kg−1 of cyanidin 3-O-glucoside equivalents (CGE)) than the control samples at the end of their shelf life. Moreover, the mass loss was minimal (0.56%), and fruit color and firmness were maintained during shelf life. However, the rest of the batches were not suitable for commercialization after 4 d due to excessive mold development.

Formulasi dan Uji Stabilitas Sediaan Suspensi Ekstrak Rimpang Zingiber zerumbet

Zingiber zerumbet (L) Smith rhizome has been used traditionally as an herbal medicine in Indonesia. Isolated extracts and metabolites of Z. zerumbet have shown anti-inflammatory, antioxidant, antidiabetic, anticancer, antimicrobial, analgesic and antiviral activity. The form of suspension is carried out to facilitate the utilization of the main bioactive content, zerumbone, which is difficult to dissolve in water. The formulation of suspension is based on variations in the concentration of Z. zerumbet extract, which is 2.5% (formulation 1), 5% (formulation 2), and 10% (formulation 3). To determine the physical stability, the evaluation is carried out, namely: organoleptic test, density, viscosity, redispersibility and pH. The results showed all three formulations did not provide organoleptic changes for 30 days, >1 g/cm3 density, good redispersibility, and pH of 6. The viscosity of each formulation is quite varied i.e., 3.74 cp; 4,27 cp; and 11.8 cp. Formulation 3 is determined as the best formulation based on its viscosity which is closest to the standard range of good suspension viscosity according to the SNI.

EVALUATION OF THE ANTIMICROBIAL EFFECT AND BIOACTIVE CONTENT OF MONODORA MYRISTICA SEED

For many decades, the area of alternative medicine has attracted considerable attention from researchers worldwide. Interestingly, evidence abounds that affirms the efficacy of alternative medicine in the various healthcare domain. Moreso, the plants properties have been well explored relating to its medicinal compositions. The purpose of the present study was to analyze the antimicrobial and bioactive contents of the M. Myristica seed. The samples were collected and soaked for 24 hrs with different solvents to extract the medicinal component. The qualitative analysis shows the positive result in saponin, glycoside, steroid, and alkaloid, while flavonoid and tannin are negative. The quantitative analysis for M. Myristica seed show 32% to saponins, alkaloid 8.35%, phenol 55.7%, flavonoid 0.0707 mg/ml, and glycoside 5.2% while-tannin is negative. The result shows that M. Myristica can be used to produce vaccines because of saponin, while flavonoids were found to play biological and pharmacological activities, including antioxidants.

Seaweeds as a Fermentation Substrate: A Challenge for the Food Processing Industry

Seaweeds are gaining momentum as novel and functional food and feed products. From whole consumption to small bioactive compounds, seaweeds have remarkable flexibility in their applicability, ranging from food production to fertilizers or usages in chemical industries. Regarding food production, there is an increasing interest in the development of novel foods that, at the same time, present high nutritious content and are sustainably developed. Seaweeds, because they require no arable land, no usage of fresh water, and they have high nutritious and bioactive content, can be further explored for the development of newer and functional food products. Fermentation, especially performed by lactic acid bacteria, is a method used to produce functional foods. However, fermentation of seaweed biomass remains an underdeveloped topic that nevertheless demonstrates high potential for the production of new alimentary products that hold and further improve the organoleptic and beneficial properties that these organisms are characterized for. Although further research has to be deployed in this field, the prebiotic and probiotic potential demonstrated by fermented seaweed can boost the development of new functional foods.

PENGARUH METODE PENGERINGAN TERHADAP KADAR SENYAWA BIOAKTIF DAN AKTIVITAS ANTIOKSIDAN PADA HERBA SURUHAN (Peperomia pellucida L.)

Suruhan herb have been used globally as concoction for medical and therapeutic purposes, so that it is much needed to investigate their phytonutrients. The variations in drying methods can affect the levels of bioactive compounds and antioxidant activity, so an appropriate drying strategy is needed to produce simplicia that containing high bioactive compounds and antioxidant activity. Based on the considerations above, this study aimed to determine the effect of various drying methods strategies (direct sunlight, oven drying and wind drying) on the bioactive compounds and antioxidant activity of the suruhan herb. The extract of suruhan herb were subsequently analyzed for total flavonoids, total phenols, total tannins, and their antioxidant activity. The results showed that oven-dried suruhan herb produced the highest potential antioxidant activity, that was 94.67 ppm with total flavonoids 51.00 mgQE/g extract, total phenol 63.36 mgGAE/g extract, and total tannins 41.89 mgTAE/g extract. It can be concluded that the variety of drying strategy has a significant impact (p<0.05) on the bioactive content and antioxidant activity of the suruhan herb.

Supercritical CO2 Extraction of Bioactive Compounds from Mango (Mangifera indica L.) Peel and Pulp

The potential of supercritical CO2 (SC-CO2) for the extraction of bioactive compounds from mango by-products was assessed. Carotenoid extraction was optimized using a design of experiments based on temperature (35, 55 and 70 °C), pressure (10 and 35 MPa) and co-solvent addition (0%, 10% and 20% of ethanol or acetone). Moreover, the co-extraction of phenolic acids, flavonoids and xanthonoids was evaluated in a subset of parameters. Finally, a comparison was made between SC-CO2 and a two-step organic solvent extraction of the bioactive compounds from the pulp and peel fractions of two Ecuadorian varieties. The optimal extraction temperature was found to be dependent on the bioactive type, with phenolics requiring higher temperature than carotenoids. The optimal overall conditions, focused on maximal carotenoids recovery, were found to be 55 °C, 35 MPa and 20% of ethanol. The main carotenoid was β-carotene, while phenolics differed among the varieties. The bioactive content of the peel was up to 4.1-fold higher than in the pulp fraction. Higher antioxidant activity was found in the extracts obtained with organic solvents. SC-CO2 is a promising technology for the isolation of valuable compounds from mango by-products.

A Study of Genus Zingiber: The Role of Condiments in Science

Background and purpose: Zingiberaceae family has been widely used as an herbal medicine from generation to generation. This review aimed more in-depth into information and correlation about the empirical uses, bioactive compounds, and biological activities, a literature review genus Zingiber was conducted. Methods: Articles about genus Zingiber were collected from databases (e.g., DOAJ (Directory of Open Access Journal), PubMed, ResearchGate, ScienceDirect, and Springer), they were sorted based on inclusions criteria such as; related to bioactive compounds and biological activities of the samples and also articles for the last ten year. Results: The screening results obtained 52 reports to review and grouped according to each plant's bioactive content and pharmacological effect. The extensive constituent in genus Zingiber is essential oil. Therefore, the major activity found in this genus was related to antimicrobial and anti-oxidant. Furthermore, the other activities of plants were related to their factual use during this time. Conclusion: The empirical uses of these rhizomes were in line with the bioactive compounds and biological activities.