scholarly journals Hydroponic Production Systems: Impact on Nutritional Status and Bioactive Compounds of Fresh Vegetables

2018 ◽  
Author(s):  
Alfredo Aires
Keyword(s):  
Nutritional Status ◽  
Bioactive Compounds ◽  
Production Systems ◽  
Fresh Vegetables

Composition of commercially produced organic and conventional strawberries

2014 ◽  
Vol 44 (6) ◽  
pp. 562-575 ◽  
Author(s):  
Tõnu Tõnutare ◽  
Kati Keert ◽  
Lech Szajdak ◽  
Ulvi Moor
Keyword(s):  
Bioactive Compounds ◽  
Design Methodology ◽  
Total Phenolics ◽  
Production Systems ◽  
Soluble Solids ◽  
Fragaria Ananassa ◽  
Cultivation System ◽  
Content Type ◽  
Total Antioxidant ◽  
Solids Content

Purpose – The purpose of this study was to determine differences in taste-related and bioactive compounds of organically (OR) and conventionally (CONV) cultivated commercially produced strawberries (Fragaria × ananassa Duch.). Addresses the question if the consumers buying OR strawberries are likely to purchase fruits with better taste and richer in bioactive compounds than those buying CONV fruits. Design/methodology/approach – Only information commonly available to the consumers [cultivar, quality class, product origin (country) and eco-labelling], was considered in selecting experimental material. “Polka” strawberries from 14 farms (7 OR and 7 CONV) from South Estonia were used for analyses. Findings – No evidence was found that OR strawberries contain more bioactive compounds or have higher soluble solids content and titratable acids ratio (associated with better taste) compared to CONV strawberries. There were significant differences in content of total phenolics, anthocyanins, ascorbic acid, vitamin E, total antioxidant capacity, titratable acids and soluble solids between strawberries from individual farms irrespective of cultivation system. Research limitations/implications – Our study was limited to strawberry “Polka” and some other cultivars might response differently to production systems. Social implications – Consumers get information that by choosing an organic product in the marketplace, it is not guaranteed that this product has higher content of bioactive compounds. Originality/value – Comparative studies of organic and conventional products are preferably performed with products grown at the same location with the same amount of nutrients etc. However, information of production site’s microclimate, soil texture or the amount of plant available nutrients is never available to the consumers. Therefore, our consumer-oriented approach might be valuable.

Algae as production systems of bioactive compounds

2015 ◽  
Vol 15 (2) ◽  
pp. 160-176 ◽  
Author(s):  
Izabela Michalak ◽  
Katarzyna Chojnacka
Keyword(s):  
Bioactive Compounds ◽  
Production Systems

scholarly journals Eggshell as a source of calcium in the production, nutrition and bromatological composition of 'Piatã' and 'Marandu' grasses

2016 ◽  
Vol 20 (2) ◽  
pp. 113-118
Author(s):  
Nágila H. da Silveira ◽  
Flávio H. S. Rabêlo ◽  
Adauton V. de Rezende ◽  
Carlos H. S. Rabelo ◽  
Hudson C. Bianchini
Keyword(s):  
Nutritional Status ◽  
Production Systems ◽  
Block Design ◽  
Dry Mass ◽  
Metabolizable Energy ◽  
Neutral Detergent Fiber ◽  
Environmentally Sustainable ◽  
Randomized Block Design ◽  
Randomized Design ◽  
Agricultural Production Systems

ABSTRACT The demand for environmentally sustainable agricultural production systems encouraged this study, which evaluated the productive aspects and nutritional status of 'Piatã' palisadegrass and productive aspects and bromatological composition of 'Marandu' palisadegrass fertilized with eggshell, replacing other sources of calcium. 'Piatã' palisadegrass was grown in the field, in a randomized block design, and 'Marandu' palisadegrass in pots, in a completely randomized design, both with eggshell doses equivalent to 0, 78, 156, 234, 312 and 390 kg ha-1 of total calcium, using four replicates. The productive aspects of 'Piatã' and 'Marandu' grasses were not significantly altered by the eggshell doses, as well as the contents and accumulations of N, P, K, Ca, Mg, S, B, Cu, Fe, Mn and Zn in the 'Piatã' palisadegrass and dry mass, neutral detergent fiber, acid detergent fiber, hemicellulose, crude protein, digestible energy, metabolizable energy and the apparent digestibility of dry mass in the 'Marandu' palisadegrass. As a source of calcium, eggshell did not increase the mass production of the forages and did not promote improvements in the nutritional status of 'Piatã' palisadegrass and bromatological composition of 'Marandu' palisadegrass.

NUTRIENT BALANCES AND ECONOMIC PERFORMANCE IN URBAN AND PERI-URBAN VEGETABLE PRODUCTION SYSTEMS OF THREE WEST AFRICAN CITIES

2014 ◽  
Vol 51 (1) ◽  
pp. 126-150 ◽  
Author(s):  
AISHA ABDULKADIR ◽  
SHEICK K. SANGARÉ ◽  
HAMADOUN AMADOU ◽  
JOHN O. AGBENIN
Keyword(s):  
Economic Performance ◽  
Production Systems ◽  
West African ◽  
Vegetable Production ◽  
Nutrient Inputs ◽  
African Cities ◽  
High K ◽  
Fresh Vegetables ◽  
Bobo Dioulasso ◽  
Increase Productivity

SUMMARYUrban and peri-urban (UPA) cultivation supplies fresh vegetables and employment for the increasing number of urban inhabitants. It is characterized by the use of large nutrient inputs to increase productivity and often associated with negative environmental risks. For these reasons, this study quantified nutrient (nitrogen, N; phosphorus, P; and potassium, K) flows and economic performance of UPA gardening of the three West African cities of Kano, Nigeria; Bobo Dioulasso, Burkina Faso; Sikasso, Mali, during a 2-year period using theMonitoring forQualityImprovement (MonQI) toolbox considering inflows and outflows sources. Average annual N, P and K balances were positive for all gardens in the three cities with N balances of 279, 1127 and 74 kg N ha−1in Kano, Bobo Dioulasso and Sikasso, respectively, except for annual K deficits of 222 and 187 kg K ha−1in Kano and Sikasso, respectively. Nitrogen use efficiencies were 63%, 51% and 87% in Kano, Bobo Dioulasso and Sikasso, respectively, with poor P use efficiencies due to excess application in all three cities. However, a high K efficiency was observed in Bobo Dioulasso (87%) while applications of K were lower than required in Kano and Sikasso with efficiencies of 121% and 110%, indicating possible K mining. The average annual gross margins from gardening indicated a statistically higher (p< 0.05) return of US$3.83 m−2in Bobo Dioulasso than returns obtained in Kano (US$0.92 m−2) and Sikasso (US$1.37 m−2). Although an economically vibrant activity, intensive UPA vegetable production needs to be reviewed for strategic planning towards improving N and P use efficiencies in order to maintain its productivity as well as safeguard the environment. Appropriate K fertilization is necessary to avoid long term K depletion in Kano and Sikasso UPA gardening.

scholarly journals Tropical agroindustrial biowaste revalorization through integrative biorefineries—review part I: coffee and palm oil by-products

2021 ◽  
Author(s):  
Jose-Aníbal Mora-Villalobos ◽  
Francisco Aguilar ◽  
Ana-Francis Carballo-Arce ◽  
José-Roberto Vega-Baudrit ◽  
Humberto Trimino-Vazquez ◽  
...  
Keyword(s):  
Caffeic Acid ◽  
Bioactive Compounds ◽  
Sugar Cane ◽  
Oil Palm ◽  
Production Systems ◽  
Industrial Process ◽  
Quinic Acid ◽  
Caffeic Acid Phenethyl Ester ◽  
Added Value ◽  
By Products

AbstractTropical crops are an important source of wealth in many countries. The current agribusiness model is based on the production of a final commodity, leading to the production of organic by-products (biowastes) that in many cases contain bioactive compounds with a potential added value. The exploitation of these by-products is the foundation of the circular economy that leads to the generation of greener bioprocesses for the industry with foreseeable economic improvements in production systems. This review aims to point out the idle opportunities of agricultural production systems and their associated biowastes to contribute to the establishment of a bioeconomy. Hence, the focus lies on five tropical extensive crops: coffee, oil palm, sugar cane, banana, and pineapple. This first part of the review explores agricultural wastes originated from the coffee and oil palm industrial process and is oriented on the potential use of these by-products as a starting material for the alternative obtention of chemicals, otherwise obtained from petrochemistry. The second part of the review focuses on prospective use of lignocellulosic rich biowaste that is derived from the industrialization of sugar cane, banana, and pineapple. A fundamental difference for the use of coffee biomass compared to other crops is the presence of numerous bioactive compounds that are not yet properly utilized, such as antioxidants (i.e., caffeic acid, chlorogenic acid, ferulic acid), as well as their possible use in the manufacture of products of interest in the cosmetic (i.e., quinic acid) or pharmaceutical industry (i.e., caffeic acid phenethyl ester). In the case of oil palm, its potential lies in obtaining chemicals such as glycerol and carotenoids, or in the bioenergy production.

scholarly journals Nutritional Therapy in COVID-19 Management

2020 ◽  
Vol 1 (1) ◽  
pp. 10-12
Author(s):  
Cecilia Medeiros de Morais
Keyword(s):  
Immune System ◽  
Severe Acute Respiratory Syndrome ◽  
Nutritional Status ◽  
Bioactive Compounds ◽  
Nitrogen Loss ◽  
Nutritional Therapy ◽  
Bioactive Molecules ◽  
Nutritional Management ◽  
Dietary Recommendations ◽  
Balanced Diet

This review deals with the relationship among nutrition, the immune system, and coronavirus disease 2019 (COVID-19). The influence of nutrients and bioactive molecules present in foodstuffs on immune system activity, the influence of COVID-19 on the nutritional status of the patients, and the dietary recommendations for hospitalized patients are addressed. Deficient nutritional status is probably due to anorexia, nausea, vomiting, diarrhea, hypoalbuminemia, hypermetabolism, and excessive nitrogen loss. There is limited knowledge regarding the nutritional support during hospital stay of COVID-19 patients. However, nutritional therapy appears as first-line treatment and should be implemented into standard practice. Optimal intake of all nutrients, mainly those playing crucial roles in immune system, should be assured through a diverse and well-balanced diet. Nevertheless, in order to reduce the risk and consequences of infections, the intakes for some micronutrients may exceed the recommended dietary allowances since infections and other stressors can reduce micronutrient status. In the case of critically ill patients, recently published guidelines are available for their nutritional management. Further, several natural bioactive compounds interact with the angiotensin-converting enzyme 2 (ACE2) receptor, the gateway for severe acute respiratory syndrome (SARS) and severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Natural bioactive compounds can also reduce the inflammatory response induced by SARS-CoV-2. These compounds are potential beneficial tools in the nutritional management of COVID-19 patients.

Endoparasite and nutritional status of Suffolk lambs in seven production systems

2018 ◽  
Vol 58 (9) ◽  
pp. 1667 ◽  
Author(s):  
Jordana Andrioli Salgado ◽  
Marcelo Beltrão Molento ◽  
Cristina Santos Sotomaior ◽  
Laila Talarico Dias ◽  
Luciana Laitano Dias de Castro ◽  
...  
Keyword(s):  
Weight Gain ◽  
Nutritional Status ◽  
Production System ◽  
Production Systems ◽  
Body Condition Score ◽  
Daily Weight Gain ◽  
Free Access ◽  
Creep Feeding ◽  
Concentrate Supplementation ◽  
Parasite Infections

Lambs are the most susceptible category for parasite infections; therefore, the choice of the production system can influence nutritional status and reduce parasite infections. The present study aimed to evaluate the endoparasites and nutritional status of meat lambs in seven production systems. In the feedlot, they were (S1) early weaned lambs in feedlot and (S2) unweaned lambs in feedlot with controlled suckling. On pasture, they were (S3) early weaned lambs on pasture without supplementation, (S4) early weaned lambs on pasture with concentrate supplementation post-weaning, (S5) unweaned and unsupplemented lambs on pasture, (S6) unweaned lambs on pasture with concentrate supplementation and creep-feeding and (S7) unweaned lambs on pasture with free access to creep-grazing on white clover (Trifolium repens). Suffolk lambs (n = 132) were evaluated from 45 to 101 days of age, at 14-day intervals (0, 14, 28, 42 and 56 days). Parasite faecal egg count (FEC), FAMACHA score (FMC), average daily weight-gain and body condition score (BCS) were evaluated. The animals were treated with anthelmintics when they had FMC 3, 4 or 5 and/or FEC above 700. BCS and FEC (r = –0.361) and BCS and FMC variables (r = –0.313) were negatively correlated (P ≤ 0.01). FEC was lower in feedlot and in creep-feeding animals than in the other systems after the second evaluation (28 days). The weaned feedlot-lamb and controlled-suckling systems presented the best performance. On pasture, the animals in creep-feeding and creep-grazing had the best performance. Weaned and unsupplemented lambs on pasture had the lowest daily weight-gain (63 g/day) and the highest FMC scores (43% of animals) and the lowest BCS (mean 1.5). The endoparasite and nutritional statuses of the lambs were strongly correlated and were influenced by the production system, mainly when the ewes were present and the lambs received supplementation on pasture.

scholarly journals Kadar Mangiferin Pada Lima Kultivar Pucuk Daun Mangga (Mangifera indica L.)

2020 ◽  
Vol 13 (2) ◽  
pp. 242-249
Author(s):  
Tri Cahyanto ◽  
Afriansyah Fadillah ◽  
Risda Arba Ulfa ◽  
Rizal Maulana Hasby ◽  
Ida Kinasih
Keyword(s):  
Bioactive Compounds ◽  
Research Method ◽  
Mangifera Indica ◽  
Herbal Medicines ◽  
Positive Sample ◽  
Young Leaf ◽  
Scientific Study ◽  
Phytochemical Screening ◽  
Traditional Medicines ◽  
Fresh Vegetables

AbstrakPemanfaatan pucuk daun mangga (Mangifera indica L.) oleh masyarakat menjadi lalapan dan dipercaya berkhasiat sebagai obat tradisional. Hal ini merupakan suatu proses kearifan lokal berdasarkan pengalaman empiris orang-orang terdahulu yang kemudian dijadikan kajian studi ilmiah, yaitu etnobotani. Kajian studi etnobotani termasuk pemanfaatan pucuk daun mangga sebagai lalapan masih jarang dilakukan. Penelitian ini bertujuan untuk mengetahui senyawa bioaktif termasuk mangiferin yang terkandung dalam lima kultivar mangga. Sampel kultivar mangga yang digunakan dalam penelitian antara lain Manalagi, Arum manis, Cengkir, Gedong apel dan Golek. Metode penelitian yang digunakan yaitu skrining fitokimia dan pengukuran kadar senyawa mangiferin dengan HPLC. Hasil penelitian menunjukkan sampel positif mengandung senyawa bioaktif alkaloid, flavonoid, saponin dan tanin. Kadar senyawa mangiferin paling tinggi secara berurutan terdapat pada kultivar Arum manis (20,83%), Manalagi (20,56%), Gedong apel (18,54%), Cengkir (15,10%), dan Golek (5,05%). Kultivar mangga Arum manis memiliki kadar mangiferin paling tinggi, untuk selanjutnya dapat dikaji pemanfaatannya sebagai obat herbal tradisional. Abstract Utilization young leaf of mango (Mangifera indica L.) by the community as lalapan and it is believed to be efficacious as traditional medicines. This process through of local wisdom based on empirical experience of conservative people used as a scientific study, namely ethnobotany. Ethnobotany studies include the use of mango leaf shoots as fresh vegetables are still rarely performed.This study aims to determine bioactive compounds including mangiferin contained in five cultivars of mango. Mango cultivar samples used in this study include Manalagi, Arum manis, Cengkir, Gedong apel and Golek. The research method used was phytochemical screening and measurement of mangiferin compounds by HPLC. The results showed a positive sample containing bioactive compounds, alkaloids, flavonoids, saponins and tannins. The highest levels of mangiferin compounds were found in Arum manis (20.83%), Manalagi (20.56%), Gedong apel (18.54%), Cengkir (15.10%) and Golek (5.05%). Arum manis cultivars has highest value of mangiferin levels, which can be explored for their use as traditional herbal medicines.

Seasonal Variation of Food Consumption and Selected Nutrient Intake in Linxian, a High Risk Area for Esophageal Cancer in China

2002 ◽  
Vol 72 (6) ◽  
pp. 375-382 ◽  
Author(s):  
Xiao Nong Zou ◽  
Philip Taylor ◽  
Steven Mark ◽  
Ann Chao ◽  
Wen Wang ◽  
...  
Keyword(s):  
Esophageal Cancer ◽  
Seasonal Variation ◽  
Nutritional Status ◽  
Food Consumption ◽  
Nutrient Intake ◽  
Alpha Tocopherol ◽  
Leafy Vegetables ◽  
Nutrient Intakes ◽  
Fresh Vegetables ◽  
Poor Nutritional Status

Linxian, China, is a region with high incidence of esophageal cancer and a history of poor nutritional status. Nutrition Intervention Trials were conducted in this area from 1985 through 1991 and found a reduction in total cancer mortality in the group receiving supplementation of beta-carotene/selenium/alpha-tocopherol. The positive results of those trials have, in part, been ascribed to the poor nutritional status of this population. To investigate more recent food patterns, nutrient intakes, and seasonal variations in the diet, dietary surveys were conducted among the residents of Linxian in 1996. Food consumption data were collected among 104 households in spring and 106 households in autumn using a method of food inventory changes. Intake of nutrients was estimated and compared to the Chinese Recommended Dietary Allowance (RDA). In both seasons, the five most common food groups consumed were cereals, fresh vegetables, yams, seasonings, and eggs. Low nutrient intakes were found for selenium (79% RDA and 66% RDA), zinc (72% RDA and 62% RDA), vitamin B2 (64% RDA and 52% RDA), and calcium (53% RDA and 39% RDA) in both spring and autumn. A large seasonal variation was seen in the consumption of leafy vegetables, root vegetables and eggs, all of which might have contributed to the lower intake of vitamin A (25% RDA), vitamin C (75% RDA), protein (76% RDA), and vitamin E (78% RDA) in autumn. These indicate that the nutrient intake in Linxian is inadequate for a number of vitamins and minerals including those shown to be associated with esophageal cancer.

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