Wild apple (Malus spp.) by-products as a source of phenolic compounds and vitamin C for food applications

2020 ◽  
Vol 38 ◽  
pp. 100744 ◽  
Author(s):  
Vitalijs Radenkovs ◽  
Tõnu Püssa ◽  
Karina Juhnevica-Radenkova ◽  
Jorens Kviesis ◽  
Francisco J. Salar ◽  
...  
Keyword(s):  
Phenolic Compounds ◽  
Vitamin C ◽  
Food Applications ◽  
By Products

scholarly journals Valorization of the tomato to obtain a powder rich in antioxidant constituents

2018 ◽  
Author(s):  
Djamel Mennouche ◽  
Abdelghani Boubekri ◽  
Bachir Bouchekima ◽  
Slimane Boughali ◽  
Rebiha Moumeni ◽  
...  
Keyword(s):  
Phenolic Compounds ◽  
Lycopersicon Esculentum ◽  
Vitamin C ◽  
Convective Drying ◽  
Polyphenol Content ◽  
Total Polyphenol ◽  
Red Color ◽  
Nutritional Qualities ◽  
Processed Form ◽  
By Products

The tomato (Lycopersicon esculentum), widely consumed fresh fruit but also in processed form, is recognized for its nutritional qualities, rich in micro components, such as carotenoids (lycopene in particular), phenolic compounds and vitamin C. The goal of this work is to valorize the tomato; in the form of paste, seeds, peel and mixture of seeds-peel; in order to obtain a powder rich in antioxidant constituents. Convective drying of the various tomato by-products (paste, seeds, peel and mixture) is an essential process in the valorization of the studies products. The results obtained, showed that our analysed samples are rich in phenolic compounds. The mixture seeds-peel has slightly higher total polyphenol content (190.65 mg EAG / ml), peel (157.36 mg EAG / ml), seeds (140.56 mg EAG / ml) and the paste (120 mg EAG / ml). The evolution of the color of dried by-products (method L, a, b), shows that the mixture (seeds-peel) has a better result of parameter "a" (indicates the red color and signifies the presence of Lycopene). Keywords: tomato, drying, antioxidant, polyphenols

scholarly journals By-Products of Camu-Camu [Myrciaria dubia (Kunth) McVaugh] as Promising Sources of Bioactive High Added-Value Food Ingredients: Functionalization of Yogurts

Molecules ◽  
2019 ◽  
Vol 25 (1) ◽  
pp. 70 ◽  
Author(s):  
Natália Conceição ◽  
Bianca R. Albuquerque ◽  
Carla Pereira ◽  
Rúbia C. G. Corrêa ◽  
Camila B. Lopes ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Phenolic Compounds ◽  
Food System ◽  
Food Additives ◽  
Added Value ◽  
Phenolic Profile ◽  
Food Ingredients ◽  
Myrciaria Dubia ◽  
By Products ◽  
Fruit Part

Camu-camu (Myrciaria dubia (Kunth) McVaugh) is a fruit economically relevant to the Amazon region, mostly consumed in the form of processed pulp. Our aim was to perform an unprecedented comparative study on the chemical composition and bioactivities of the camu-camu pulp and industrial bio-residues (peel and seed), and then the most promising fruit part was further explored as a functionalized ingredient in yogurt. A total of twenty-three phenolic compounds were identified, with myricetin-O-pentoside and cyanindin-3-O-glucoside being the main compounds in peels, followed by p-coumaroyl hexoside in the pulp, and ellagic acid in the seeds. The peel displayed the richest phenolic profile among samples, as well as the most significant antibacterial (MICs = 0.625–10 mg/mL) and anti-proliferative (GI50 = 180 µg/mL against HeLa cells) activities. For this reason, it was selected to be introduced in a food system (yogurt). Taken together, our results suggest the possibility of using the camu-camu peel as a source of food additives.

scholarly journals Extraction of Phenolic Compounds and Terpenes from Cannabis sativa L. By-Products: From Conventional to Intensified Processes

Antioxidants ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 942
Author(s):  
Emilie Isidore ◽  
Hamza Karim ◽  
Irina Ioannou
Keyword(s):  
Phenolic Compounds ◽  
Cannabis Sativa ◽  
Biological Activities ◽  
Operating Conditions ◽  
Extraction Techniques ◽  
Ultrasound Assisted Extraction ◽  
Assisted Extraction ◽  
Whole Plant ◽  
Conventional Solvent Extraction ◽  
By Products

Cannabis sativa L. is a controversial crop due to its high tetrahydrocannabinol content varieties; however, the hemp varieties get an increased interest. This paper describes (i) the main categories of phenolic compounds (flavonoids, stilbenoids and lignans) and terpenes (monoterpenes and sesquiterpenes) from C. sativa by-products and their biological activities and (ii) the main extraction techniques for their recovery. It includes not only common techniques such as conventional solvent extraction, and hydrodistillation, but also intensification and emerging techniques such as ultrasound-assisted extraction or supercritical CO2 extraction. The effect of the operating conditions on the yield and composition of these categories of phenolic compounds and terpenes was discussed. A thorough investigation of innovative extraction techniques is indeed crucial for the extraction of phenolic compounds and terpenes from cannabis toward a sustainable industrial valorization of the whole plant.

Assessment of in-vitro bioaccessibility and antioxidant capacity of phenolic compounds extracts recovered from grapevine bunch stem and cane by-products

2021 ◽  
Vol 348 ◽  
pp. 129063
Author(s):  
Susana Ferreyra ◽  
Carolina Torres-Palazzolo ◽  
Rubén Bottini ◽  
Alejandra Camargo ◽  
Ariel Fontana
Keyword(s):  
Phenolic Compounds ◽  
Antioxidant Capacity ◽  
In Vitro Bioaccessibility ◽  
By Products

scholarly journals Sustainable Processing of Floral Bio-Residues of Saffron (Crocus sativus L.) for Valuable Biorefinery Products

Plants ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 523
Author(s):  
Stefania Stelluti ◽  
Matteo Caser ◽  
Sonia Demasi ◽  
Valentina Scariot
Keyword(s):  
Phenolic Compounds ◽  
Vitamin C ◽  
Antioxidant Properties ◽  
Crocus Sativus ◽  
Extraction Technique ◽  
Ultrasound Assisted Extraction ◽  
Average Value ◽  
Assisted Extraction ◽  
High Yields ◽  
Crocus Sativus L

Tepals constitute the most abundant bio-residues of saffron (Crocus sativus L.). As they are a natural source of polyphenols with antioxidant properties, they could be processed to generate valuable biorefinery products for applications in the pharmaceutical, cosmetic, and food industries, becoming a new source of income while reducing bio-waste. Proper storage of by-products is important in biorefining and dehydration is widely used in the herb sector, especially for highly perishable harvested flowers. This study aimed to deepen the phytochemical composition of dried saffron tepals and to investigate whether this was influenced by the extraction technique. In particular, the conventional maceration was compared with the Ultrasound Assisted Extraction (UAE), using different solvents (water and three methanol concentrations, i.e., 20%, 50%, and 80%). Compared to the spice, the dried saffron tepals showed a lower content of total phenolics (average value 1127.94 ± 32.34 mg GAE 100 g−1 DW) and anthocyanins (up to 413.30 ± 137.16 mg G3G 100 g−1 DW), but a higher antioxidant activity, which was measured through the FRAP, ABTS, and DPPH assays. The HPLC-DAD analysis detected some phenolic compounds (i.e., ferulic acid, isoquercitrin, and quercitrin) not previously found in fresh saffron tepals. Vitamin C, already discovered in the spice, was interestingly detected also in dried tepals. Regarding the extraction technique, in most cases, UAE with safer solvents (i.e., water or low percentage of methanol) showed results of phenolic compounds and vitamin C similar to maceration, allowing an improvement in extractions by halving the time. Thus, this study demonstrated that saffron tepals can be dried maintaining their quality and that green extractions can be adopted to obtain high yields of valuable antioxidant phytochemicals, meeting the requirement for a sustainable biorefining.

ecovery of phenolic compounds from agro-industrial by-products: evaluating antiradical activities and immunomodulatory properties

2021 ◽  
Author(s):  
Parisa Abbasi-Parizad ◽  
Patriza De Nisi ◽  
Barbara Scaglia ◽  
Alessio Scarafoni ◽  
Salvatore Pilu ◽  
...  
Keyword(s):  
Phenolic Compounds ◽  
Immunomodulatory Properties ◽  
By Products

Diffuse light affects the contents of vitamin C, phenolic compounds and free amino acids in lettuce plants

2019 ◽  
Vol 272 ◽  
pp. 227-234 ◽  
Author(s):  
Patrick Riga ◽  
Leyre Benedicto ◽  
Ángel Gil-Izquierdo ◽  
Jacinta Collado-González ◽  
Federico Ferreres ◽  
...  
Keyword(s):  
Amino Acids ◽  
Phenolic Compounds ◽  
Vitamin C ◽  
Free Amino Acids ◽  
Free Amino ◽  
Diffuse Light

scholarly journals The influence of ethanol on the convective drying and on the nutritional quality of dekopon slices

2018 ◽  
Author(s):  
Ronaldo Elias de Mello-Júnior ◽  
Nathane Silva Resende ◽  
Jefferson Luiz Gomes Corrêa ◽  
Leila Aparecida Salles Pio ◽  
Elisângela Elena Nunes Carvalho
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Vitamin C ◽  
Nutritional Quality ◽  
Quality Parameters ◽  
Nutritional Composition ◽  
Convective Drying ◽  
Total Phenolic ◽  
Drying Time ◽  
Citrus Reticulate

Dekopon or Hallabong (Citrus reticulate “Shiranui”) is a hybrid fruit that belongs to the citrus fruits. The scientific and commercial interests in dekopon is due to its nutritional composition. The objective of the study was to verify the influence of ethanol as a pretreatment in reducing drying time as well as maintaining nutritional quality (vitamin C, total phenolic compounds, and antioxidant activity) of dekopon slices. The drying with ethanol at 70 °C promoted the greatest reduction in drying time, but the processed pretreated samples at 50 °C presented the highest level of nutritional quality parameters. Keywords: drying time; vitamin C; phenolic compounds; antioxidant activity 

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