The impact of frozen storage duration on physical, chemical and microbiological properties of pork

The present study evaluated the effects of dietary supplementation of spirulina on laying hens’ performances: Eggs’ physical, chemical, and sensorial qualities. A total of 45 Lohman White hens, 44 weeks of age, were randomized into 3 groups of 15 birds. Hens were given 120 g/d of a basal diet containing 0% (control), 1.5%, and 2.5% of spirulina for 6 weeks. Albumen height and consequently Haugh unit were significantly affected by dietary supplementation of spirulina (p < 0.05) and by weeks on diet (p < 0.05). This supplement did not affect (p > 0.05) egg yolk weight or height. However, spirulina increased egg yolk redness (a*) from 1.33 (C) to 12.67 (D1) and 16.19 (D2) and reduced (p < 0.05) the yellowness (b*) parameter from 62.1(C) to 58.17 (D1) and 55.87 (D2). Egg yolks from hens fed spirulina were darker, more red, and less yellow in color than egg yolks from hens fed the control-diet (p < 0.0001). However, spirulina did not affect (p > 0.05) egg yolks’ total cholesterol concentration. In conclusion, a significant enhancement of egg yolk color was found in response to spirulina supplementation. Further investigations are needed to evaluate the impact of spirulina on egg yolks’ fatty acids profile.

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The Effects of Storage Duration on Biodiesel Derived from Waste Cooking Oil

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.660.386 ◽

2014 ◽

Vol 660 ◽

pp. 386-390 ◽

Cited By ~ 1

Author(s):

Norazwan Azman ◽

Mirnah Suardi ◽

Amir Khalid

Keyword(s):

Diesel Fuel ◽

Fossil Fuels ◽

Acid Value ◽

Waste Cooking Oil ◽

Biodiesel Fuel ◽

Storage Duration ◽

Fuel Prices ◽

Cooking Oil ◽

Impact Reduction ◽

The Impact

The use of fossil fuels as energy sources has grown to significantly be likely to have a major environmental impact. Reduction of world oil reserves and increasing environmental concerns have prompted alternative is found and renewable source of energy called biodiesel. Biodiesel fuel from vegetable oil is considered as the best candidates for diesel fuel replacement in diesel engines because of its closer. Fuel prices are going up day by day in the world. Thus, the means and methods have been trying for years to get fuel alternative outcomes. This study investigated the effects of different storage periods used in quality biodiesel blends (B5, B10, B15) of waste cooking oil and diesel fuel under low temperature and the temperature of the environment. Biodiesel samples were stored in glass containers under indoor conditions, and outdoor conditions for 10 weeks in total. These samples were monitored on a weekly basis through the test properties. The experimental density, viscosity, acid value, water content and flash point discussed in detail. Biodiesel storage at low temperatures is suitable and more advantageous because the impact on the physical properties is minimal and beneficial to slow down the degradation of biodiesel and storage.

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The Impact of Nitrogen Plasma Treatment upon the Physical-Chemical and Dyeing Properties of Wool Fabric

Polymer-Plastics Technology and Engineering ◽

10.1080/03602550600728943 ◽

2006 ◽

Vol 45 (10) ◽

pp. 1123-1132 ◽

Cited By ~ 34

Author(s):

M. M. El-Zawahry ◽

N. A. Ibrahim ◽

M. A. Eid

Keyword(s):

Plasma Treatment ◽

Nitrogen Plasma ◽

Wool Fabric ◽

Dyeing Properties ◽

Physical Chemical ◽

The Impact

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ASSESSMENT OF SHELF LIFE AND BACTERIAL LOAD OF VIABLE EGGS OBTAINED AT THE POINT OF LAY FROM ROOM AND REFRIGERATOR STORAGE TEMPERATURES

Bacterial Empire ◽

10.36547/be.2020.3.3.62-65 ◽

2020 ◽

Vol 3 (3) ◽

pp. 62-65

Author(s):

Obhioze Augustine Akpoka

Keyword(s):

Shelf Life ◽

Proteus Mirabilis ◽

Room Temperature ◽

Bacterial Load ◽

Viable Count ◽

Pseudomonas Sp ◽

Storage Duration ◽

Egg Storage ◽

Salmonella Pullorum ◽

The Impact

It is well established that storing hatching eggs over a longer period of time affects its quality. The current study evaluated the impact of egg storage duration in-relation to two different temperature conditions (room and refrigerator) to determine the bacterial load and shelf life of viable eggs. One hundred and twenty eggs were used for this study, 60 were boiled and 60 were raw. Thirty of the boiled eggs were stored at room temperature and the other 30 eggs were kept in the refrigerator. Similarly, 30 raw eggs were each stored at room and optimal refrigeration temperatures for eggs (< 7 oC) respectively, while the egg weight, viability and sensory tests were performed daily on the eggs. However, the eggs kept in the refrigerator were viable for longer and relatively maintained higher physical appearance and sensory quality compared to eggs kept at room temperature. In the investigation of bacterial load, the total viable count ranged from 6.0× 103 to 11.9 × 103 coliform forming unit per millilitre (cfu/ml) and 1.0 × 103 to 6.5 × 103 cfu/ml for the boiled eggs kept at room and refrigeration temperatures (BRT and BFT) respectively. More so, the bacterial counts in raw eggs obtained at room and refrigerator storage ranged from 4.8 × 103 to 6.5 × 103 cfu/ml. Subsequently, the characterization and identification of bacterial isolates indicated the presence of Salmonella pullorum, Proteus mirabilis and Pseudomonas sp. The Salmonella pullorum was isolated from all the egg samples (BRT, BFT, RRT and RFT). The Proteus mirabilis was isolated from boiled eggs kept in both room and refrigerator temperatures (BRT and BFT) while Pseudomonas sp. was obtained only from raw eggs stored in the refrigerator (RFT). In addition, the boiled eggs at room temperature started deterioration on Day 9, while its counterpart in the refrigerator began spoilage or decrease in quality from Day 16. The weight of the viable eggs in relation to the non-viable ones was statistically significant (P < 0.05). The refrigeration of eggs increases its longevity while proper hygiene and adequate boiling of eggs reduces the risk of acquiring infections through bacterial contamination.

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Yoghurt Fortified Formulation of Lakum Fruit (Cayratia trifolia (L.) Domin) Extract as an Antioxidant

Majalah Obat Tradisional ◽

10.22146/mot.35405 ◽

2018 ◽

Vol 23 (3) ◽

pp. 91 ◽

Cited By ~ 1

Author(s):

Weni Puspita ◽

Nurkhasanah Nurkhasanah ◽

Ika Dyah Kumalasari

Keyword(s):

Antioxidant Activity ◽

High Stability ◽

National Standard ◽

Total Acid ◽

Fruit Extract ◽

Physical Chemical ◽

Cayratia Trifolia ◽

Acidic Conditions ◽

Anthocyanin Stability ◽

Microbiological Properties

Lakum (Cayratia trifolia (L.) Domin) contains a lot of anthocyanin. Anthocyanin in Lakum fruit has a high stability if stored at low temperatures, acidic conditions, and without light. The acidic product such as yogurt can provide an optimum condition for anthocyanin stability and antioxidant activity. The purpose of this study was to optimize yogurt formulation fortified by lakum fruit extract as an antioxidant according to the requirements of the Indonesian National Standard (SNI). Lakum fruit extract was formulated in yogurt with various concentrations at 0%, 5%, 7.5% and 10%. Evaluations were carried out including tests of physical, chemical and microbiological properties and anthocyanin test and antioxidant of yogurt. The results showed that the yogurt formula fortified lakum fruit extract at 7.5% concentration resulted highest anthocyanin stability and antioxidant activity that fulfilled SNI requirements and the preferred level of respondents' preference with anthocyanin levels of 53.35±1.04 mg/L, antioxidant activity 69.15±0.24%, t90 7.97 days, total of lactic acid bacteria (LAB) 48.2x107 colony/gram, fat 3.72±0.03%, pH 3.87±0.03, total acid 0.83±0.06%, viscosity 639.07±2.06 cP, protein of 4.90±0.11%, hedonic test, 6.88 (like), and organoleptic purple (5), the distinctive aroma of lakum fruit (4.95), sour taste (4.85), fine texture (4.9) and slightly liquid viscosity (4.85).

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The impact of coal ash and slag dump on the quality of surface and ground waters - a case study

Journal of the Serbian Chemical Society ◽

10.2298/jsc190129012c ◽

2019 ◽

Vol 84 (5) ◽

pp. 527-530

Author(s):

Ivana Cipranic ◽

Radmila Markovic ◽

Stefan Djordjievski ◽

Zoran Stevanovic ◽

Marija Stevanovic

Keyword(s):

Water Samples ◽

Coal Ash ◽

Negative Influence ◽

Physical Treatment ◽

Physical Chemical ◽

Quality Of Water ◽

Slag Dump ◽

The Impact

This paper presents the assessment of the impact of coal ash and slag from the ?Maljevac? dump on the quality of water of Paleski Creek, Montenegro. The obtained results confirm the negative influence of surface and groundwater from the dump on the water from the Paleski Creek. The results obtained by testing of the water samples, collected from Paleski Creek upstream of the dump, indicate that the water is qualified to be used for drinking, after simple physical treatment and disinfection. The results obtained for the water samples collected from the Paleski creek downstream from the dump indicate that the water could be safe for drinking only after the treatment that requires an intensive physical, chemical and biological processing, including some extended treatment.

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Kajian Tingkat Pencemaran Minyak Bumi Akibat Pengeboran Ilegal Berdasarkan Pemetaan Sungai Sumur Dan Fisika-Kimia Air Studi Kasus : Kecamatan Keluang Kabupaten Musi Banyuasin Sumatera Selatan

PROMINE ◽

10.33019/promine.v6i2.779 ◽

2018 ◽

Vol 6 (2) ◽

pp. 16-23

Author(s):

Harnani .

Keyword(s):

Public Health ◽

Chemical Compounds ◽

Oil Drilling ◽

Physical Chemical ◽

Information Research ◽

The Status ◽

Chemical Content ◽

The Government ◽

Physical Changes ◽

The Impact

Water pollution is a thing that can affect the environment, especially on health and hygiene environment around. Sub Keluang Regency Musi Betung South Sumatra known to have oil drilling wells of the Earth where illegal do not fit a common standardization is done, so worried about polluted areas the surroundings. This research aims to study and know the impact of environmental pollution due to the illegal drilling by local people, as well as provide information research results to the Government and the police to cooperate in enforcing laws that have set. To find out which level contamination using a research method that is mapping rivers and wells include deskipsi the physical characteristics, such as water color, flavor, odor, retrieval example of a sample for the analysis of physical-chemical content of the water, and the projection of the level of public health. The result of the physical identification of the water as much as 8 samples were declared contaminated. Sampling see the provisions on physical changes on either the river or the well, the results of the analysis of physical-chemical water, found many chemical compounds which exceed standard pH obtained ranged from 6.25- 8.16 and types of groundwater salt (31-464 mg/L TDS), increase the value of pH and TDS is assumed to be due to saltwater waste results from drilling for petroleum is illegal, and the presence of chemical compounds, either the main or excessive accessories in water then it can affect health, which that is evidenced by the results of the projection of the level of public health from the years 2016 to now that continues to decline. referring to the decision of the Minister of State for the environment number: 115 the year 2003 on guidelines for the determination of the Status of Water quality by the State Minister for the environment using STORET method with a score of 16 (polluted medium).

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