scholarly journals Effect of Packaging on the Stability of Stored Dry Silver Cyprinid (Rastrineobola argentea)

2021 ◽  
Vol 10 (1) ◽  
pp. 63
Author(s):  
Mary Namwanje ◽  
Julia Kigozi ◽  
Ivan M. Mukisa ◽  
Isaac Omagor ◽  
Sloans K. Chimatiro
Keyword(s):  
Lake Victoria ◽  
Nutrient Content ◽  
Quality Parameters ◽  
Microbial Safety ◽  
Storage Duration ◽  
Nutrient Quality ◽  
Aflatoxin Content ◽  
Inadequate Information ◽  
Safety Parameters ◽  
The Stability

Dried silver cyprinid (Rastrineobola argentea) has the potential to provide an affordable and accessible food-based strategy to fight malnutrition among Ugandans and enrich diets of the vulnerable persons. However, there is inadequate information on changes in the nutritional content and safety of stored dry silver cyprinid along the local handling chain. This study evaluated the effect of conventionally used packaging on microbial safety and nutrient quality of dry silver cyprinid during storage. Freshly dried silver cyprinid was obtained from stores at four landing sites on Lake Victoria and stored in open and closed gunny bags for 8 weeks. Samples were collected at 0, 1, 2, 4, 6 and 8 weeks of storage and assessed for nutritional and microbial quality. The type of packaging used (open or closed gunny bags) had no significant effect on most nutrient content and microbial safety parameters (p >0.05) except iron content, aflatoxin content, and TVBN content. Open gunny bags had higher aflatoxin content, greater iron degradation and greater variation in TVBN as compared to closed gunny bags throughout the storage duration. The observed difference in some of the quality parameters can be attributed to increased permeability to oxygen and moisture in open gunny bags as compared to closed gunny bags.

scholarly journals Karabuğday (Fagopyrum esculentum Moench)’da Farklı Azotlu Gübre Formlarının Etkinliği

2016 ◽  
Vol 4 (6) ◽  
pp. 515 ◽  
Author(s):  
Burhan Kara ◽  
Fatoş Güllü Çelebi ◽  
Nimet Kara ◽  
Bekir Atar
Keyword(s):  
Ammonium Nitrate ◽  
Ammonium Sulfate ◽  
Nutrient Content ◽  
Quality Parameters ◽  
Mineral Nutrient ◽  
First Year ◽  
Nitrogen Forms ◽  
Biological Yield ◽  
Fagopyrum Esculentum Moench ◽  
Positive Effect

The research was carried out with aim to determination the efficient of nitrogen forms (ammonium sulfate, ammonium nitrate and urea) on nitrogen use efficient for buckwheat in Isparta during 2014 and 2015 years. All the examined characteristics were determined higher values in applied nitrogen forms according to non-nitrogen parcel. In compared to nitrogen forms, the highest grain yield (1456 and 1325 kg ha-1), biological yield (4873 and 4512 kg ha-1), 1000 grain weight (24.9 and 24.8 g), agronomic efficient (24.96% and 24.25%), recycling efficient (0.24% and 0.22%) and utilization efficient (0.25% and 0.18%) were obtained from ammonium sulfate, the highest protein content (11.37% and 12.44%) and agro-physiological efficient (0.27% and 0.24%) from ammonium nitrate in both years. Among the nitrogen forms weren’t significant differently in physiological efficient in both years, recycling and utilization efficient in the first year. The mineral nutrient content varied according to nitrogen forms. Generally, ammonium sulfate was positive effect to yield and some quality parameters.

The causes and consequences of fisheries conflict around the Horn of Africa

2021 ◽  
pp. 002234332110384 ◽  
Author(s):  
Colleen Devlin ◽  
Sarah M Glaser ◽  
Joshua E Lambert ◽  
Ciera Villegas
Keyword(s):  
Lake Victoria ◽  
Horn Of Africa ◽  
News Reports ◽  
Illegal Fishing ◽  
Fisheries Resources ◽  
High Conflict ◽  
Lake Victoria Region ◽  
The Stability ◽  
Conflict Intensity ◽  
Fisheries Conflict

Fisheries conflict is an underappreciated threat to the stability and health of communities. Declining fish populations, rising demand for seafood, and efforts to reduce illegal fishing are increasing the risk that conflict over fisheries resources will undermine stability and peace. Here, we investigate the frequency, causes, and consequences of fisheries conflict in six countries around the Horn of Africa and East Africa (Tanzania, Kenya, Somalia, Djibouti, Eritrea, and Yemen) between 1990 and 2017. Fisheries conflict events were cataloged from news reports, and events were characterized by the date, location, actors, consequences, and drivers of the conflict. We found the rate of fisheries conflict is gradually increasing in the region, with spikes in conflict driven by the arrival of foreign fishing boats or international naval vessels. Conflict was caused primarily by illegal fishing, foreign fishing, weak governance, limits on access to fishing grounds, and criminal activities including piracy. Two-thirds of all conflict events occurred in Kenyan and Somali waters, with areas of high conflict intensity in the Lake Victoria region, near the Somali coastline, and in the southern Red Sea. During this period, 684 fisheries conflict events in the region resulted in over 400 fatalities, nearly 500 injuries, and over 4,000 arrests.

Effect of ascorbic acid, oxygen and storage duration on patulin in cloudy apple juice produced on a semi-industrial scale

2020 ◽  
pp. 1-12
Author(s):  
C. El Hajj Assaf ◽  
N. De Clercq ◽  
E. De Paepe ◽  
G. Vlaemynck ◽  
E. Van Coillie ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Apple Juice ◽  
Quality Parameters ◽  
Industrial Scale ◽  
Penicillium Expansum ◽  
Innovative Technology ◽  
Reaction Products ◽  
Low Oxygen ◽  
Storage Duration ◽  
Oxygen Conditions

Patulin (PAT), a mycotoxin mainly produced by Penicillium expansum, is of high concern with regard to human food safety. This study examined the stability of PAT in artificially contaminated cloudy apple juice (CAJ) produced on a semi-industrial scale using an innovative technology allowing degassing and pressing under low-oxygen conditions (VaculIQ 1000). The effects of adding ascorbic acid (AA), degassing during production and storing in the dark at 20 °C on the PAT concentration were studied, as well as possible degradation and reaction products formed. The highest PAT degradation (50%) was observed for flash-pasteurised juice with AA added, produced under low-oxygen conditions and degassed and stored for 14 days at 20 °C in the dark in aluminium laminate aseptic bags. Juices produced showed no significant differences in the quality parameters measured and did not show significant formation of reaction products. Further research needs to be focused on the fate of PAT in CAJ produced on an industrial level with and without addition of AA.

scholarly journals Effect of Silvofishery on Ponds Nutrient Levels (Pengaruh Silvofishery Terhadap Kandungan Nutrien di Tambak)

2014 ◽  
Vol 19 (2) ◽  
pp. 81 ◽  
Author(s):  
Anna Ida Sunaryo Purwiyatno ◽  
Fitri Agustriani
Keyword(s):  
Water Quality ◽  
National Parks ◽  
National Park ◽  
Sampling Method ◽  
Phosphorus Content ◽  
Nutrient Content ◽  
Pond Water ◽  
Quality Parameters ◽  
Mangrove Forests ◽  
Purposive Sampling

Taman Nasional Sembilang merupakan salah satu taman nasional yang terletak di Sumatera Selatan dan menjadi kawasan mangrove terbesar di barat Indonesia. Sebagian besar wilayah mangrovenya telah mengalami alih fungsi menjadi tambak pasang surut. Hal ini menyebabkan timbulnya kekhawatiran kerusakan mangrove di taman nasional. Salah satu upaya untuk mempertahankan wilayah mangrove adalah dengan melakukan sistem silvofishery, yaitu penanaman mangrove dan budidaya bandeng dilakukan secara bersamaan di tambak. Penelitian ini bertujuan untuk menganalisis kualitas air dan kondisi nutrien di tambak di daerah restorasi silvofishery di Taman Nasional Sembilang. Penelitian dilakukan dengan metode purposive sampling di tambak silvofishery, tambak non-silvofishery, dan badan air sungai di seluruh wilayah taman nasional. Pengukuran dilakukan terhadap parameter kualitas air dan kandungan nutrien khususnya nitrat dan fosfat. Hasil penelitian menunjukkan bahwa kehadiran tanaman mangrove di daerah tambak mampu memperbaiki kandungan oksigen dan pH air tambak. Mangrove juga menunjukkan kemampuan dalam mengikat nitrat yang secara tidak langsung akan mencegah air tambak dari polusi. Namun, kandungan fosfat tinggi menunjukkan bahwa tanaman mangrove muda di wilayah restorasi belum mampu mengikat nutrien ini secara signifikan. Hasil penelitian ini menunjukkan bahwa hutan mangrove sangat bermanfaat bagi kegiatan budidaya tambak karena kemampuannya dalam menyerap polutan nutrient. Kata kunci: silvofishery; kolam; nitrat; fosfat; Taman Nasional Sembilang Sembilang National Park is one of the national parks which is located in South Sumatera and became the largest mangrove area in western Indonesia. Most of the mangroves area in this national park has been experiencing conversion to be tidal ponds. This has resulted in concerns on mangrove forest destruction in the park. One of the efforts to maintain mangroves area is by applying silvofishery system, which is mangrove planting and cultivation of milkfish in ponds performed simultaneously. This study aims to investigate the water quality and nutrient condition in the ponds in the area of silvofishery restoration at Sembilang National Park. The study was conducted by purposive sampling method in the silvofishery ponds, non-silvofishery ponds, and river water bodies throughout the park. Measurements conducted on water quality parameters and nutrient content, especially nitrate and phosphate. The results showed that the presence of mangrove in the ponds area is able to improve the oxygen content and pH of pond water. Mangroves also demonstrated the ability to bind nitrates which indirectly will prevent the pond water from pollution. However, the high phosphorus content showed that young mangrove plants in the restoration area have not been able to significantly bind the of this nutrient. The results of this study showed that mangrove forests are very beneficial for aquaculture activities because of its ability to absorb nutrient pollutants. Keywords: silvofishery; ponds; nitrate; phosphate; Sembilang National Park

scholarly journals Statistical Distribution and Spatio-Temporal Variation of Nutrients in Lower Danube River Waters Between km 375 - km 175 in Relation to Hydrological Regime

2020 ◽  
Vol 71 (4) ◽  
pp. 71-80
Author(s):  
Violeta-Monica Radu ◽  
Petra Ionescu ◽  
Gyorgy Deak ◽  
Elena Diacu ◽  
Irina-Elena Ciobotaru ◽  
...  
Keyword(s):  
Water Flow ◽  
Hydrological Regime ◽  
Nutrient Content ◽  
Ammonia Nitrogen ◽  
Quality Parameters ◽  
Danube River ◽  
The Black Sea ◽  
Chl A ◽  
Spatio Temporal ◽  
The Impact

Nutrient pollution, a growing problem for most European river basins, is a priority challenge in the Danube River Basin, a river that interconnects freshwater with the marine environment. The nutrient content of the Lower Danube waters in a river area where hydro-technical works to improve navigation conditions were carried out, respectively between km 375 and km 175, was evaluated in conection with other water quality parameters and with the hydrological regime. This paper is based on the data obtained during the period 2011-2017 on water samples taken from 10 sampling sections, and the following parameters were investigated: pH, ammonia nitrogen - NH4-N, nitrites - NO2-N, nitrates - NO3-N, total nitrogen - TN, orthophosphates - PO4-P, total phosphorus - TP, Chlorophyll a - Chl �a�, all of which are correlated with water flow - Q. The results showed a significant correlation between the nutrients content, Chl �a�, and water flow, taking into account both the anthropic and climatic pressures on the aquatic ecosystem and the impact of the water body loads on the Black Sea coastal zone.

scholarly journals A study on the effects of foliar feeding under different soil fertilization conditions on the yield structure and quality of common oat (Avena sativa L.)

2014 ◽  
Vol 67 (1) ◽  
pp. 109-120 ◽  
Author(s):  
Stanisław Chwil
Keyword(s):  
Nutrient Content ◽  
Quality Parameters ◽  
Urea Solution ◽  
Test Plant ◽  
Soil Fertilization ◽  
Primary Yield ◽  
Magnesium Compounds ◽  
Yield Structure ◽  
Qualitative Characteristics

<p>The present study was conducted based on a field experiment established on very acidic medium soil (silt loam). The experimental design included 4 soil fertilization treatments: O, NPK, NPK + MgSO<sub>4</sub>. 7H<sub>2</sub>O, NPK + CaO + MgO, and 3 foliar feeding treatments: O<sub>(H2O)</sub>, Insol PK + 5% urea solution, Ekosol U. The test plant was the oat cultivar ‘Kwant’. The aim of this study was to characterize in detail the response of oats to foliar feeding under the conditions of different soil fertilization with calcium and magnesium compounds. The experimental factors applied increased the yield parameters and differentiated the nutrient content in oat grain and straw. Soil fertilization had a greater effect on the quality parameters of primary yield than the foliar fertilizers used in the study. The best production and quality effects in growing oats were obtained after the application of MgSO<sub>4</sub> and magnesium lime. Foliar feeding also affected beneficially the quantitative and qualitative characteristics of the yield. Among the fertilizers used, Insol PK showed a better effect than Ekosol U, in particular on the yield structure and the amino acid composition of proteins.</p>

scholarly journals Assessment of the Ecological Health of Afrotropical Rivers Using Fish Assemblages: A Case Study of Selected Rivers in the Lake Victoria Basin, Kenya

2021 ◽  
Vol 2 ◽  
Author(s):  
Alfred O. Achieng ◽  
Frank O. Masese ◽  
Tracey J. Coffey ◽  
Phillip O. Raburu ◽  
Simon W. Agembe ◽  
...  
Keyword(s):  
Water Quality ◽  
Fish Species ◽  
Fish Assemblages ◽  
Lake Victoria ◽  
Principal Component ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Lake Victoria Basin ◽  
Anthropogenic Pressures ◽  
Species Tolerance

Streams and rivers are globally threatened ecosystems because of increasing levels of exploitation, habitat degradation and other anthropogenic pressures. In the Lake Victoria Basin (LVB) in East Africa, these threats are mostly caused by unsustainable land use; however, the monitoring of ecological integrity of river systems has been hampered by a lack of locally developed indices. This study assessed the health of four rivers (Nzoia, Nyando, Sondu–Miriu and Mara) on the Kenyan side of the LVB using physicochemical water quality parameters and a fish-based index of biotic integrity (IBI). Fish tolerance ranking was derived from principal component analysis of water quality parameters, and the concept of niche breadth (NB). The relationship between fish species and water quality parameters was examined with canonical correspondence analysis, whereas community metrics and stressors were evaluated through Pearson network correlation analysis. Fish species richness, trophic structures, taxonomic composition and species tolerance were used to generate the metrics for fish-based IBI. NB showed that most of the fish species were moderately tolerant to poor water. Moderately tolerant and intolerant fish species were negatively correlated with a high level of organic loading in the Mara River. Fish-based IBI scores for the rivers ranged from 26 to 34, with Sondu–Miriu scoring the lowest. Our results show that the cumulative effect of stressors can adequately rank fish species tolerance according to the disturbance gradients and further develop regional metrics to assess river health. Despite the fact that fish communities are declining, continual management and enforcement of environmental regulations are important, with conservation and management of headwaters and low-order streams being essential while they are still species rich.

scholarly journals STUDY OF QUALITY AND SAFETY PARAMETERS OF LIVER PASTES WITH AUBERGINE POWDER

2019 ◽  
Vol 4 ◽  
pp. 18-27
Author(s):  
Oksana Dzyundzya ◽  
Valentyna Burak ◽  
Іrina Ryapolova ◽  
Nadiia Voievoda ◽  
Mariya Shinkaruk ◽  
...  
Keyword(s):  
New Products ◽  
Quality Parameters ◽  
Partial Replacement ◽  
Quality And Safety ◽  
Study Quality ◽  
Chemical Parameters ◽  
Infrared Drying ◽  
Safety Parameters ◽  
Food Potential ◽  
Food Value

The aim of this work is to study quality and safety parameters of developed recipes of liver pastes with a partial replacement of liver by aubergine powder that allows to improve their food value and to introduce them in food rations of people, working at toxic enterprises, living on ecologically polluted territories and all population layers. This work is devoted to studying quality and safety parameters of liver pastes with aubergine powders, produced by infrared drying at temperature 50–60 °С. Chemical parameters, established for developed paste products, are presented. The use of aubergine powders gives a possibility to increase biological and food values, to widen the assortment of pastes with prognosticated quality parameters, to form new consumption properties of products, to use the food potential of vegetable supplements more completely. It has been proved, that new pastes with using aubergine powders confirmed advantages of developed products over traditional ones. New products have a balanced chemical composition, low energetic value, decreased content of easily assimilated carbohydrates and increased content of healthy ingredients of functional and treating-prophylactic destination. These studies testify the quality and safety of developed paste recipes. It has been established, that adding aubergine powders in paste recipes results in increasing a food value at the expanse of raising an amount of carbohydrates, content of irreplaceable amino acids, enrichment with mineral substances and vitamins.

scholarly journals A Novel Stability Study of Simvastatin Generic Tablet in Public Pharmacy Facilities of Purwakarta District, Indonesia

2021 ◽  
pp. 548-562
Author(s):  
Muchtaridi Muchtaridi ◽  
Rini Yulianita ◽  
Iyan Sopyan ◽  
Amirah Mohd Gazzali
Keyword(s):  
Drug Stability ◽  
Stress Test ◽  
Simulation Method ◽  
Storage Conditions ◽  
Quality Parameters ◽  
Stability Study ◽  
Storage Duration ◽  
Disintegration Time ◽  
Temperature And Humidity ◽  
Physical And Chemical Quality

Drug stability is one of the most important criteria for producing safe, excellent and effective products. Some environmental factors that influence drug stability are light, temperature, and humidity. Simvastatin is a cholesterol-lowering drug that is known to be sensitive to high temperature and humidity. The purpose of this study is to analyze the effect of 6 months of real-time storage conditions on the stability of generic simvastatin tablets in public pharmacy facilities. This study used simulation method with 4 brands of simvastatin generic tablets with two different strengths (10 mg and 20 mg). In the process, the sample was conditioned in 6 different regions for 6 months. The results of temperature and humidity monitoring showed 2 locations at ≤ 25 ° C, 4 locations had a temperature of ≥ 25 °C and all locations had humidity > 65 %. The drug was evaluated for physical and chemical quality parameters at months 0, 3, and 6. After being stored for 6 months, the tablets showed a decrease in disintegration time and an increase in the friability, showing lack of durability. Similarly, there was a decrease in the content concentration in the tablets but fortunately the level was still within the accepted specification range (90 – 110 %). However, there was one tablet that did not meet the dissolution test requirements after the storage duration (Q ≤ 75 % at 30 minutes). The results of the stress test showed that simvastatin degraded in all conditions. This stress test confirmed the extreme instability of simvastatin.  Poor storage conditions can reduce the quality of generic simvastatin tablets, thus a well-controlled environment is vital in pharmacy facilities.

Sign in / Sign up

Export Citation Format

Share Document