scholarly journals Chondracanthus teedei var. lusitanicus: The Nutraceutical Potential of an Unexploited Marine Resource

Marine Drugs ◽  
2021 ◽  
Vol 19 (10) ◽  
pp. 570
Author(s):  
Diana Pacheco ◽  
João Cotas ◽  
Andreia Domingues ◽  
Sandrine Ressurreição ◽  
Kiril Bahcevandziev ◽  
...  
Keyword(s):  
Mineral Content ◽  
Dry Weight ◽  
Food Sources ◽  
Caloric Content ◽  
Human Diet ◽  
Red Seaweeds ◽  
Potential Resource ◽  
Low Levels ◽  
A Current ◽  
Nutraceutical Properties

Presently, there is a high demand for nutritionally enhanced foods, so it is a current challenge to look at new raw food sources that can supplement beneficially the human diet. The nutritional profile and key secondary metabolites of red seaweeds (Rhodophyta) are gaining interest because of this challenge. In this context, the possible use of the red seaweed Chondracanthus teedei var. lusitanicus (Gigartinales) as a novel nutraceutical source was investigated. As a result, we highlight the high mineral content of this seaweed, representing 29.35 g 100 g−1 of its dry weight (DW). Despite the low levels of calcium and phosphorus (0.26 and 0.20 g 100 g−1 DW, respectively), this seaweed is an interesting source of nitrogen and potassium (2.13 and 2.29 g−1 DW, accordingly). Furthermore, the high content of carbohydrates (56.03 g 100 g−1 DW), which acts as dietary fibers, confers a low caloric content of this raw food source. Thus, this study demonstrates that C. teedei var. lusitanicus is in fact an unexploited potential resource with the capability to provide key minerals to the human diet with promising nutraceutical properties.

scholarly journals Nutraceutical Vegetable Oil Nanoformulations for Prevention and Management of Diseases

Nanomaterials ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 1232 ◽  
Author(s):  
Cristian Vergallo
Keyword(s):  
Vegetable Oil ◽  
Metabolic Disorders ◽  
Health Benefits ◽  
The Body ◽  
Bibliographic Databases ◽  
Human Diet ◽  
Drug Effectiveness ◽  
Low Levels ◽  
Bioactive Agents ◽  
Nutraceutical Properties

The scientific community is becoming increasingly interested in identifying, characterizing, and delivering nutraceuticals, which constitutes a multi-billion-dollar business. These bioactive agents are claimed to exhibit several health benefits, including the prevention and treatment of diseases such as arthritis, cancer, osteoporosis, cataracts, Alzheimer’s, and Huntington’s diseases, heart, brain and metabolic disorders, etc. Nutraceuticals are typically consumed as part of a regular human diet and are usually present within foods, comprising vegetable oil, although at low levels and variable composition. Thus, it is difficult to control the type, amount and frequency of their ingestion by individuals. Nanoformulations about vegetable oil-based bioactive compounds with nutraceutical properties are useful for overcoming these issues, while improving the uptake, absorption, and bioavailability in the body. The purpose of this current study is to review papers on such nanoformulations, particularly those relevant for health benefits and the prevention and management of diseases, as well as bioactives extracted from vegetable oils enhancing the drug effectiveness, retrieved through bibliographic databases by setting a timespan from January 2000 to April 2020 (about 1758 records).

scholarly journals Vitamin C from Seaweed: A Review Assessing Seaweed as Contributor to Daily Intake

Foods ◽  
2021 ◽  
Vol 10 (1) ◽  
pp. 198
Author(s):  
Cecilie Wirenfeldt Nielsen ◽  
Turid Rustad ◽  
Susan Løvstad Holdt
Keyword(s):  
Systematic Review ◽  
Vitamin C ◽  
Seasonal Variations ◽  
Analytical Methods ◽  
Daily Intake ◽  
Dry Weight ◽  
Food Sources ◽  
Diverse Group ◽  
Seaweed Species ◽  
Red Seaweeds

Seaweeds are indiscriminately said to contain significant amounts of vitamin C, but seaweeds are a diverse group, which may limit the ability to generalize. Several studies have been performed on vitamin C in seaweed, and this review covers these findings, and concludes on how much vitamin C is found in seaweeds. A systematic review of vitamin C in 92 seaweed species was conducted followed by analyzing the 132 data entries. The average vitamin C content was 0.773 mg g−1 seaweed in dry weight with a 90th percentile of 2.06 mg g−1 dry weight. The vitamin C content was evaluated based on taxonomical categories of green, brown and red seaweeds (Chlorophyta (phylum), Phaeophyceae (class), and Rhodophyta (phylum)), and no significant differences were found between them. The vitamin C content was compared to other food sources, and this showed that seaweeds can contribute to the daily vitamin C intake, but are not a rich source. Moreover, seasonal variations, analytical methods, and processing impacts were also evaluated.

scholarly journals On the Health Benefits vs. Risks of Seaweeds and Their Constituents: The Curious Case of the Polymer Paradigm

Marine Drugs ◽  
2021 ◽  
Vol 19 (3) ◽  
pp. 164
Author(s):  
João Cotas ◽  
Diana Pacheco ◽  
Glacio Souza Araujo ◽  
Ana Valado ◽  
Alan T. Critchley ◽  
...  
Keyword(s):  
Brown Seaweed ◽  
Dry Weight ◽  
Sargassum Muticum ◽  
Human Nutrition ◽  
Health Impacts ◽  
Gracilaria Gracilis ◽  
Red Seaweeds ◽  
Positive Effects ◽  
Negative Impacts ◽  
Biomedical Potential

To exploit the nutraceutical and biomedical potential of selected seaweed-derived polymers in an economically viable way, it is necessary to analyze and understand their quality and yield fluctuations throughout the seasons. In this study, the seasonal polysaccharide yield and respective quality were evaluated in three selected seaweeds, namely the agarophyte Gracilaria gracilis, the carrageenophyte Calliblepharis jubata (both red seaweeds) and the alginophyte Sargassum muticum (brown seaweed). It was found that the agar synthesis of G. gracilis did not significantly differ with the seasons (27.04% seaweed dry weight (DW)). In contrast, the carrageenan content in C. jubata varied seasonally, being synthesized in higher concentrations during the summer (18.73% DW). Meanwhile, the alginate synthesis of S. muticum exhibited a higher concentration (36.88% DW) during the winter. Therefore, there is a need to assess the threshold at which seaweed-derived polymers may have positive effects or negative impacts on human nutrition. Furthermore, this study highlights the three polymers, along with their known thresholds, at which they can have positive and/or negative health impacts. Such knowledge is key to recognizing the paradigm governing their successful deployment and related beneficial applications in humans.

scholarly journals A2 Bovine Milk and Caprine Milk as a Means of Remedy for Milk Protein Allergy

Dairy ◽  
2021 ◽  
Vol 2 (2) ◽  
pp. 191-201
Author(s):  
Young W. Park ◽  
George F. W. Haenlein
Keyword(s):  
Milk Protein ◽  
Bovine Milk ◽  
Goat Milk ◽  
Food Sources ◽  
Cow Milk ◽  
Cow’S Milk ◽  
Dairy Goat ◽  
Cow's Milk ◽  
Caprine Milk ◽  
Low Levels

A new type of cow’s milk, called A2 milk, has appeared in the dairy aisles of supermarkets in recent years. Cows’ milk generally contains two major types of beta-casein as A1 and A2 types, although there are 13 genetic variants of β-casein: A1, A2, A3, A4, B, C, D, E, F, H1, H2, I and G. Studies have shown that A1 β-casein may be harmful, and A2 β-casein is a safer choice for human health especially in infant nutrition and health. The A2 cow milk is reportedly easier to digest and better absorb than A1 or other types of milk. The structure of A2 cow’s milk protein is more comparable to human breast milk, as well as milk from goats, sheep and buffalo. Digestion of A1 type milk produces a peptide called β-casomorphin-7 (BCM-7), which is implicated with adverse gastrointestinal effects on milk consumption. In addition, bovine milk contains predominantly αs1-casein and low levels or even absent in αs2-casein, whereby caprine milk has been recommended as an ideal substitute for patients suffering from allergies against cow milk protein or other food sources. Since goat milk contains relatively low levels of αs1-casein or negligible its content, and αs2-casein levels are high in the milk of most dairy goat breeds, it is logical to assume that children with a high milk sensitivity to αs1-casein should tolerate goat milk well. Cow milk protein allergy (CMPA) is considered a common milk digestive and metabolic disorder or allergic disease with various levels of prevalence from 2.5% in children during the first 3 years of life to 12–30% in infants less than 3 months old, and it can go up to even as high as 20% in some countries. CMPA is an IgE-mediated allergy where the body starts to produce IgE antibodies against certain protein (allergens) such as A1 milk and αs1-casein in bovine milk. Studies have shown that ingestion of β-casein A1 milk can cause ischemic heart disease, type-1 diabetes, arteriosclerosis, sudden infant death syndrome, autism, schizophrenia, etc. The knowledge of bovine A2 milk and caprine αs2-casein has been utilized to rescue CMPA patients and other potential disease problems. This knowledge has been genetically applied to milk production in cows or goats or even whole herds of the two species. This practice has happened in California and Ohio, as well as in New Zealand, where this A2 cow milk has been now advanced commercially. In the USA, there have been even promotions of bulls, whose daughters have been tested homozygous for the A2 β-casein protein.

Cold tolerance of the Antarctic springtail Gomphiocephalus hodgsoni (Collembola, Hypogastruridae)

2001 ◽  
Vol 13 (3) ◽  
pp. 271-279 ◽  
Author(s):  
Brent J. Sinclair ◽  
Heidi Sjursen
Keyword(s):  
Cold Tolerance ◽  
Thermal Environment ◽  
Strong Relationship ◽  
Dry Weight ◽  
Glycerol Content ◽  
Recrystallization Inhibition ◽  
Low Levels ◽  
Inhibition Studies ◽  
The Antarctic ◽  
The Relationship

Cold tolerance of the springtail Gomphiocephalus hodgsoni Carpenter (Collembola: Hypogastruridae) was studied at Cape Bird, Ross Island, Antarctica (77°13′S, 166°26′E). Microclimate temperatures indicate a highly seasonal thermal environment, with winter minima <–39°C. Snow cover significantly buffers both minimum temperatures and cooling rates. Gomphiocephalus hodgsoni survives low temperatures by avoiding freezing. Mean low group supercooling points (SCPs) ranged from –35.4°C in October to –28.3°C in January. The lowest SCP measured was –38.0°C. The high SCP group was very small, making up only 18% of the population in January. In October, G. hodgsoni had a very high glycerol content (>80 μg mg−1 dry weight), although this declined rapidly to low levels (c. 7–10 μg mg−1 dry weight) in January. Quantities of glucose and trehalose were low during October, but steadily increased throughout the summer. Haemolymph osmolality was exceptionally high (up to 1755 mOsm kg−1) at the end of November, but this rapidly declined to c. 500 mOsm kg−1 by late December. The presence of thermal hystersis proteins was indicated by both osmometry on haemolymph samples and recrystallization inhibition studies of springtail homogenates. There was a strong relationship between glycerol content and SCP, but the relationship between haemolymph osmolality, SCP and carbohydrates is uncertain.

scholarly journals Yield and Mineral Content of Hydroponically Grown Mini-Cucumber (Cucumis sativus L.) as Affected by Reduced Nutrient Concentration and Foliar Fertilizer Application

HortScience ◽  
2017 ◽  
Vol 52 (12) ◽  
pp. 1728-1733 ◽  
Author(s):  
Martin M. Maboko ◽  
Christian Phillipus Du Plooy ◽  
Silence Chiloane
Keyword(s):  
Nutrient Concentration ◽  
Mineral Content ◽  
Dry Weight ◽  
Fertilizer Application ◽  
Production Costs ◽  
Nutrient Concentrations ◽  
Foliar Fertilizer ◽  
Yield And Quality ◽  
Hydroponically Grown

Nutrient application is one of the major inputs required for hydroponic production of cucumbers. Reduced nutrient solution concentration with supplementary foliar fertilizer application may maintain yield and quality of mini-cucumber, while decreasing the production costs. An experiment was conducted to determine the effect of foliar fertilizer in combination with reduced nutrient concentrations on the yield and quality of hydroponically grown mini-cucumber in a plastic tunnel. Mini-cucumber plants were grown in sawdust, fertigated with nutrient solutions containing 100% (control), 75%, 50%, or 25% of the recommended nutrient concentration (NC) and two foliar fertilizer applications (no foliar and foliar application). The highest fresh and dry weight of mini-cucumber plants were obtained with 75% and 100% NC and decreased with 50% to 25% NC application. The number of marketable fruit and marketable yield on mini-cucumbers increased with 75% to 100% NC, followed by 50% NC, as compared with 25% NC. Deformed fruit were significantly lower at 25% NC than at 50%, 75%, and 100% NC. Foliar fertilizer application did not have an effect on mini-cucumber yield, but reduced the yellowing of fruit. Fruit mineral content (P, Fe, and Mn) was significantly improved by 100% NC. Improvement in yield at 75% and 100% NC was as a result of improved plant height, leaf chlorophyll content, plant fresh and dry weight, and the increase in nutrient uptake of N, P, K, and Mn, which was evident in the analysis of cucumber leaves. The reduced NC of 75% can maintain yield and quality of mini-cucumbers, whereas the application of foliar fertilizer had a limited effect.

scholarly journals Changes in soluble carbohydrates during storage of Caesalpinia echinata LAM. (Brazilwood) seeds, an endangered leguminous tree from the Brazilian Atlantic Forest

2006 ◽  
Vol 66 (2b) ◽  
pp. 739-745 ◽  
Author(s):  
I. S. Garcia ◽  
A. Souza ◽  
C. J. Barbedo ◽  
S. M. C. Dietrich ◽  
R. C. L. Figueiredo-Ribeiro
Keyword(s):  
Low Temperatures ◽  
Soluble Sugars ◽  
Dry Weight ◽  
Soluble Carbohydrates ◽  
Leguminous Tree ◽  
Neutral Sugars ◽  
Main Tendency ◽  
Low Levels ◽  
Caesalpinia Echinata ◽  
Seed Storability

Caesalpinia echinata seeds stored in laboratory environmental conditions lose their viability in one month whilst under low temperatures germination is maintained for 18 months of storage. These seeds are tolerant to desiccation, keeping their viability up to 0.08 gH2O.gDW-1. Since soluble carbohydrates are believed to be involved with desiccation tolerance and seed storability, the aim of this work is to analyze the content and composition of soluble carbohydrates in C. echinata seeds during storage in paper bags (PB) and glass flasks (GF) at laboratory room (RT) and cool (CT) temperatures. In freshly harvested seeds, total soluble carbohydrates comprised approximately 10% of the dry weight, decreasing to ca. 8% over 18 months of storage at RT. In seeds stored at CT, sugars varied differently decreasing initially and being restored at the end of the analysis period. The main neutral sugars in seeds from all treatments were sucrose, fructose and glucose. Raffinose and stachyose were present as traces. Free myo-inositol and other cyclitols were also detected. The main tendency observed was the variation in levels of both glucose and fructose in relation to sucrose, the highest levels of monosaccharides which were found in seeds stored at CT. The values of glucose and fructose were practically constant in seeds stored in paper bags for 18 months at CT, decreasing consistently in the other treatments, mainly at RT. Sucrose contents remained relatively stable. Changes in soluble sugars during storage suggest that the loss of germinability of seeds of C. echinata could be associated with low levels of glucose and fructose in relation to sucrose.

VARIATION IN MINERAL CONTENT OF SASKATCHEWAN FEED GRAINS

1977 ◽  
Vol 57 (4) ◽  
pp. 679-687 ◽  
Author(s):  
B. D. OWEN ◽  
M. J. FARMER ◽  
F. SOSULSKI ◽  
K. K. WU
Keyword(s):  
Soil Type ◽  
Mineral Content ◽  
Clay Soils ◽  
Seasonal Effects ◽  
Soil Types ◽  
Soil Zone ◽  
Coefficients Of Variation ◽  
Oat Cultivars ◽  
Low Levels ◽  
Gray Soil

The concentration of Ca, P, Mg, K, Zn, Cu, Mn, Fe and Se were determined in wheat, barley and oat cultivars grown in four soil zones incorporating two soil types during a 5-yr period. Ca and K in Saskatchewan grains were much lower than published values, while Zn and Fe values were much higher. Se contents in each grain averaged 0.25 ppm and were substantially below values reported in the literature. Se and Cu levels were extremely variable (CV = 31–81%), but coefficients of variation (CV) for other minerals ranged from 9 to 35%. The effects of season, soil zone, soil type and cultivar on composition of Ca, P, Mg and K were significant in most grains. Seasonal effects on Zn, Cu, Mn and Fe were quite marked, but soil type had little effect and there were few significant differences between cultivars. Grain samples from Gray soil locations were characteristically high in Zn and low in Mn. Average Se content in grain from the Brown soil zone (0.39–0.55 ppm) was highest. There was a progressive decrease through the Dark Brown and Black soils to very low levels in samples from the Gray soil zone (0.06–0.07 ppm). In each type of grain, clay soils were associated with higher Se levels than loam soils.

scholarly journals Printed Paper Waste as an Alternative Growing Medium Component to Produce Brassica Seedlings under Nursery Conditions

2020 ◽  
Vol 12 (15) ◽  
pp. 5992
Author(s):  
Antonios Chrysargyris ◽  
Panayiota Xylia ◽  
Gorkem Akinci ◽  
Konstantinos Moustakas ◽  
Nikolaos Tzortzakis
Keyword(s):  
Sustainable Agriculture ◽  
Mineral Content ◽  
Cellular Damage ◽  
Environmental Concerns ◽  
Growing Media ◽  
Paper Waste ◽  
Growing Medium ◽  
Calcium Magnesium ◽  
The Media ◽  
Low Levels

Significant quantities of paper waste (PW) have been accumulated in recent years and the reuse/recycling of PW is required due to environmental concerns. In the present study, printed PW was used as a peat (P) substitute in growing medium for the Brassica seedlings production, considering recycling, sustainable agriculture, and partly peat replacement. Seeds of cauliflower, broccoli, and cabbage were seeded in growing media made of 0–10–30–50% PW. The addition of PW improved the growing media pH and mineral content, reduced the media aeration, and affected seed emergence. The PW decreased plant growth and the effects were more pronounced at 50% PW. The PW ≥ 30% decreased stomatal conductance, while chlorophyll fluorescence and content of chlorophylls decreased with high PW ratio, negatively affecting the plant physiology. The PW decreased plant sodium and iron and increased potassium, calcium, magnesium, and copper content. The PW increased antioxidant activity to a certain degree for cauliflower and cabbage and resulted in no change for broccoli, while polyphenols increased in cabbage seedlings. The addition of PW did not cause cellular damage as both lipid peroxidation and hydrogen peroxide production remained at low levels, maintaining low levels on the antioxidant enzymes (catalase, superoxide dismutase, peroxidase) metabolism. The present study shows that low PW content can partially replace peat for Brassica seedling production under a sustainable agriculture and environmentally friendly scheme.

scholarly journals Progress on Understanding Transcriptional Regulation of Chloroplast Development in Fleshy Fruit

2020 ◽  
Vol 21 (18) ◽  
pp. 6951
Author(s):  
Ting Jia ◽  
Yuting Cheng ◽  
Imran Khan ◽  
Xuan Zhao ◽  
Tongyu Gu ◽  
...  
Keyword(s):  
Transcription Factors ◽  
Nutritional Quality ◽  
Chloroplast Development ◽  
Food Sources ◽  
Fleshy Fruit ◽  
Human Diet ◽  
Fleshy Fruits ◽  
Substantial Progress ◽  
Dark Green ◽  
Made In

Edible fleshy fruits are important food sources in the human diet. Their yield and nutritional quality have long been considered as breeding targets for improvement. Various developing fleshy fruits with functional chloroplasts are capable of photosynthesis and contribute to fruit photosynthate, leading to the accumulation of metabolites associated with nutritional quality in ripe fruit. Although tomato high-pigment mutants with dark-green fruits have been isolated for more than 100 years, our understanding of the mechanism of chloroplast development in fleshy fruit remain poor. During the past few years, several transcription factors that regulate chloroplast development in fleshy fruit were identified through map-based cloning. In addition, substantial progress has been made in elucidating the mechanisms that how these transcription factors regulate chloroplast development. This review provides a summary and update on this progress, with a framework for further investigations of the multifaceted and hierarchical regulation of chloroplast development in fleshy fruit.

Sign in / Sign up

Export Citation Format

Share Document