scholarly journals Effect of accelerated ripening agent on nutrient and antinutrient composition of banana

2021 ◽  
Vol 19 (1) ◽  
pp. 63-77
Author(s):  
O. Ariyo ◽  
B. Balogun ◽  
E.A. Solademi
Keyword(s):  
Nutritional Quality ◽  
Food System ◽  
Pantothenic Acid ◽  
Calcium Carbide ◽  
Sustainable Food ◽  
Cavendish Banana ◽  
Accelerated Ripening ◽  
Β Carotene ◽  
Sustainable Food System

Food safety especially of fruits is important for a healthy and sustainable food system. Though accelerated ripening of fruits is common in Nigeria, its effect on nutritional quality of fruits remains underexplored. This study was conducted to investigate the changes in the nutrient and antinutrient composition of banana ripened with Calcium carbide (CaC2). In this study, mature bunches of freshly harvested green bananas were grouped separately and allowed to ripen naturally and artificially (with CaC2). At the end of the ripening stage, the nutritional parameters (proximate, minerals, vitamins) and antinutritional parameters were determined using relevant analytical methods, and the results obtained were compared across groups. The results showed that the proximate composition of the artificially ripened samples increase in ash (1.49), fat (0.76), and moisture (69.86) while carbohydrate (23.92) and protein (1.88) contents declined. Similarly, Na, K, Ca, Mg, P, Fe and Zn (mg/100 g) contents were higher in calcium carbide ripened than naturally ripened sample. Naturally ripened samples contained the higher amount of Vitamins C (28.87 mg/100 g), niacin (0.89 mg/100 g), pantothenic acid (0.27 mg/100 g) and pyridoxine (0.29mg/100 g). The β-carotene (127 mcg/100 g), Vitamin E (2.9 mg/100 g) and Vitamin K (0.31 mg/100 g) increased significantly in the artificially ripened samples, when compared to the naturally ripened samples. The use of calcium carbide as a ripening agent increases moisture and phlobatannin content, and loss in protein, carbohydrate, fibre, niacin, pantothenic acid, and pyridoxine composition of Cavendish banana.  

scholarly journals When the Medicine Feeds the Problem; Do Nitrogen Fertilisers and Pesticides Enhance the Nutritional Quality of Crops for Their Pests and Pathogens?

2021 ◽  
Vol 5 ◽  
Author(s):  
Daisy A. Martinez ◽  
Ulrich E. Loening ◽  
Margaret C. Graham ◽  
Alfred Gathorne-Hardy
Keyword(s):  
Amino Acids ◽  
Nutritional Quality ◽  
Large Scale ◽  
Food System ◽  
Crop Damage ◽  
Economic Losses ◽  
Sustainable Food ◽  
N Fertilisers ◽  
Metabolic Disruption

The challenge of maximising agricultural productivity encourages growers to apply high volumes of nitrogen (N) fertilisers and pesticides in order to promote and protect yields. Despite these inputs, pests and pathogens (P&Ps) continue to cause economic losses and challenge food security at local, national, and global scales. P&Ps are a particular problem in industrial agricultural environments, where large-scale monocultures facilitate rapid growth of crop-adapted P&P populations. P&P population growth is strongly dependent upon acquisition of N-resources (e.g., amino acids) from crop tissues, and concentrations of these compounds depend on the metabolic state of the crop which, in turn, is influenced by its growth stage, by environmental conditions, and by agrochemical inputs. In this study we demonstrate that routine applications of pesticides and/or N-fertilisers may inadvertently reinforce the problem of P&P damage in agriculture by enhancing the nutritional quality of crops for these organisms. N-fertilisation has diverse influences on crops' susceptibility to P&P damage; N-fertilisers enhance the nutritional quality and “attractiveness” of crops for P&Ps, and they can also alter crops' expression of the defensive traits (both morphological and chemical) that serve to protect them against these organisms. Exposure of crops to pesticides (including commonly used insecticide, fungicide, and herbicide products) can result in significant metabolic disruption and, consequently, in accumulation of nutritionally valuable amino acids within crop tissues. Importantly, these metabolic changes may not cause visible signs of stress or toxicity in the crop, and may represent an “invisible” mechanism underlying persistent P&P pressure in the field. Given the intensity of their use worldwide, their far-reaching and destructive consequences for wildlife and overall ecosystem health, and the continued prevalence of P&P-associated crop damage in agriculture, we recommend that the impacts of these cornerstone agricultural inputs on the nutritional relationship between crops and their P&Ps are closely examined in order to inform appropriate management for a more secure and sustainable food system.

scholarly journals Food Bank Donations in the United States: A Landscape Review of Federal Policies

Nutrients ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 3764
Author(s):  
Katelin M. Hudak ◽  
Emily Friedman ◽  
Joelle Johnson ◽  
Sara E. Benjamin-Neelon
Keyword(s):  
United States ◽  
Nutritional Quality ◽  
Food System ◽  
The United States ◽  
Healthy Food ◽  
Food Banks ◽  
Food Bank ◽  
Federal Policies ◽  
Food And Beverage

Rates of food insecurity have increased substantially in the United States (US), and more families are turning to the charitable food system to help meet their needs. Prior studies have examined the nutritional quality of foods offered through food banks, but little is known about what government policies may shape the healthy food donation landscape. The purpose of this study was to review US federal policies that impact food and beverage donations to food banks and assess whether policies encourage healthy food donations. In spring 2020, two researchers independently reviewed federal food and beverage donation policies using predefined search terms in two legal databases. We identified six categories of policies based on the existing food donation literature and themes that emerged in the policy review. We identified 42 federal policies spanning six categories that addressed food and beverage donations to food banks. The largest category was “government programs,” with 19 (45%) policies. The next largest category was “donation via schools,” with 12 (29%) policies. However, no policies specifically addressed the nutritional quality of food donations. There is an opportunity for the federal government to strengthen food bank donation policies and improve the nutritional quality of donated foods and beverages.

scholarly journals Proposal of a Bioregional Strategic Framework for a Sustainable Food System in Sicily

Agronomy ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 1546
Author(s):  
Paolo Guarnaccia ◽  
Silvia Zingale ◽  
Alessandro Scuderi ◽  
Ezio Gori ◽  
Vincenzo Santiglia ◽  
...  
Keyword(s):  
Sustainable Development ◽  
Food Systems ◽  
Food System ◽  
Positive Impact ◽  
Scenario Planning ◽  
Economic Indicators ◽  
Developmental Approach ◽  
Sustainable Food ◽  
Strategic Framework ◽  
Sustainable Food System

The alignment of food systems with the Sustainable Development Goals (SDGs) is generally envisaged to make a positive impact on sustainability. This paper outlines some critical environmental and socio-economic indicators for Sicily in order to compare and explore the outcomes of two juxtaposing key drivers in a scenario planning exercise, where the extremities are Industrial versus Regenerative Agriculture/Agroecology and a Proactive versus Reactive government response. The most rational and less risky scenario becomes the most sensible sustainable development option, around which a 2030 vision is projected for a bioregional sustainable food system for Sicily, which is aligned with the SDGs and related policies. To accomplish the 2030 vision, a holistic education-led developmental approach is outlined with a supporting bioregional strategic framework, whose key milestone deliverables are projected through a backcasting process. This paper therefore highlights the importance of consistency and alignment of a development vision with its strategic framework and ensuing implementation, failing which, the holistic bioregional approach is compromised by activities that are shown to negatively impact environmental and socio-economic indicators. For this reason, all public and private sector development plans and associated resources ought to be aligned with a bioregional strategic plan for a sustainable food system for Sicily.

scholarly journals Steering the Nexus: iZindaba Zokudla and Governing for Sustainability

2021 ◽  
Vol 5 ◽  
Author(s):  
Naudé Malan
Keyword(s):  
Urban Agriculture ◽  
Stakeholder Engagement ◽  
Critical Reflection ◽  
Food System ◽  
Sustainable Food ◽  
Interactive Process ◽  
Sustainability Governance ◽  
Reflective Essay ◽  
Autocatalytic Networks ◽  
Sustainable Food System

“iZindaba Zokudla” means we talk about the food that we eat. iZindaba Zokudla is a public innovation lab that uses stakeholder-engagement methods to create “opportunities for urban agriculture in a sustainable food system.” iZindaba Zokudla is presented as an extra-institutional means to govern the water, land, energy, and waste nexus. This reflective essay critically describes iZindaba Zokudla and applies this to the design of institutional steering mechanisms to govern the food, water, land, and energy nexus towards sustainability. Governance is an intersubjective and interactive process between the subjects of governance and governance itself. Sustainability, as an interactive process, implies the creation of autocatalytic and symbiotic communities in society that integrates diverse actors and stakeholders, inclusive of scientific and lay actors, and ecosystems. iZindaba Zokudla is a means to govern and create such communities, and this article describes and reflects on how iZindaba Zokudla has created and managed such symbiotic communities or autocatalytic networks in the food system. The article generalises how the activities conducted in iZindaba Zokudla can be used to govern the water, land, energy, and waste nexus for sustainability. The article shows how iZindaba Zokudla has realised a progressive governance through the facilitation of its Farmers' Lab and website; how it has created opportunities for participation; and how it enables critical reflection in society.

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