Zeitschriften und Ausgaben

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Volumen 5 (2021): Heft 1 (June 2021)

Volumen 4 (2020): Heft 2 (December 2020)

Volumen 4 (2020): Heft 1 (June 2020)

Volumen 3 (2019): Heft 2 (December 2019)

Volumen 3 (2019): Heft 1 (June 2019)

Zeitschriftendaten
Format
Zeitschrift
eISSN
2576-6732
Erstveröffentlichung
30 Apr 2019
Erscheinungsweise
2 Hefte pro Jahr
Sprachen
Englisch

Suche

Volumen 3 (2019): Heft 2 (December 2019)

Zeitschriftendaten
Format
Zeitschrift
eISSN
2576-6732
Erstveröffentlichung
30 Apr 2019
Erscheinungsweise
2 Hefte pro Jahr
Sprachen
Englisch

Suche

5 Artikel
Uneingeschränkter Zugang

Effect of chemical preservatives on the shelf life of tomato juice

Online veröffentlicht: 26 May 2020
Seitenbereich: 1 - 13

Zusammenfassung

Abstract

This research conducted with the fully fresh, ripe and sound tomato (Lycopersicon esculentum Mill.) was collected then washed, peeled, seeds removed and transferred to the juice extractor. Sugar, preservatives were added to the extracted filtrated juice. Then the juice was heated, cooled and bottled for preservation. Tomato juice was prepared with three different treatments. Among the three treatments T1, T2 and T3 sample were prepared with no preservative, Na-benzoate preservative and potassium meta-bisulphite (KMS) preservative respectively. The organoleptic observation of this tomato juice was studied for 60 days storage period. Chemical analysis and sensory tests were carried out during the 30 days at an interval of 15 days to assess the effect of chemical additives on the shelf life of tomato juice. Negligible Change in chemical constituents except vitamin C was observed in the prepared juice throughout the 30 days storage period. Color was gradually faded and slightly off flavor develops at the end of the storage periods. The treatment T2 secured highest score for color, flavor, taste and overall acceptability and ranked as “Like very much” by a taste testing panel. Tomato juice prepared with no preservative (T1) spoiled after 45 days storage and juice prepared with KMS preservative (T3) spoiled after 60 days storage. Total number of viable bacteria was highest in tomato juice treated with no preservative (T1) and KMS preservative (T3). Tomato juice with Na-benzoate preservative (T2) contained least viable bacteria which was better than T1 and T3 sample. Considering all the parameters, Na-benzoate tends to be better additives than potassium meta-bisulphite (KMS) for preservation of tomato juice.

Schlüsselwörter

  • Tomato
  • Preservative
  • Sensory Analysis
  • KMS
  • Storage
Uneingeschränkter Zugang

Effect of Post-Harvest Dipping and Various Packaging Materials on Quality Traits of Mandarin (Citrus Reticulata Blanco.)

Online veröffentlicht: 26 May 2020
Seitenbereich: 14 - 20

Zusammenfassung

Abstract

An experiment was carried out to study the effect of post-harvest dipping and various packaging materials on quality traits of mandarin at the laboratory of Project Implementation Unit (Citrus zone) Udayapur, Katari from January to February 2019. The parameters observed were physiological loss in weight, juice content, titrable acidity, total soluble solids, TSS/TA ratio and shelf life. The packaging materials include individual newspaper wrapping, perforated polyethene and corrugated box. Gibberellic acid with a concentration of 100 ppm was used as a dipping material. The experiment was laid out in Completely Randomized Design (CRD) with 8 treatment replicated 3 times. The result showed that among eight treatments combination, fruits treated with GA3 in combination with perforated polyethene recorded minimum physiological loss in weight (1.99%) and control (19.08%). High retention of juice content (40.30%), total soluble solids(12.83 brix) and titrable acidity (0.60%) was recorded in fruits treated with GA3 in combination with perforated polyethene in 24 days of storage. Fruits treated with GA3 in combination with perforated polyethene attained shelf life of 48 days followed by perforated polyethene with a shelf life of 44 days. Finding of the experiment may prove to be helpful in rural area to store mandarin with minimum loss as markets are far from the village.

Schlüsselwörter

  • Citrus
  • gibberellic acid
  • combination
  • attributes
Uneingeschränkter Zugang

Varying Impedance “Orbital Impedance Stability“ Graphene Based Supercapacitor Nanofiber Electrodes – Utilizing A New Direct Method of Studying Impedance Based on Actual Experimental Data

Online veröffentlicht: 26 May 2020
Seitenbereich: 21 - 37

Zusammenfassung

Abstract

Single cell supercapacitors with electrodes of varying amounts of graphene and carbon black, formed via the electrospinning process with a carbon-based Polyacrylonitrile (PAN), were tested in 1M H2SO4. From the tested samples, the overall data indicates no correlation between impedance and capacitance energy values. However, the breakdown of the various samples showed mixed results of; good correlations between lower impedance resulting in higher and lower capacitance; while other samples showed higher impedance correlating to both higher and lower capacitance. No correlation was observed between the Impedance value and the thickness of the samples. Furthermore, carbon mole content was not a major factor in determining impedance; therefore, structure is not a major contributor to impedance. Whereas, carbon mole content is a major contributor to capacitance energy; Hence, impedance provides an alternative control point to increasing energy (2-10X times), that can be retrofitted to existing systems, or to increase the energy storage beyond current levels by adjusting/controlling impedance in new designs. The data is indicating impedance is not constant and is varying. The mechanism of varying impedance is unclear and requires further research. However, it is thought to mimic the energy level and stability of matter (atoms). Therefore, impedance varies or oscillates accordingly to achieve an impedance level stability, and hence the term “Orbital Impedance Stability”. Thoughts into Impedance being an Energy Field, to be provided in next publication (In-sha’-ALLAH). This research is concluding that our conventional understanding of impedance is limited in scope. New approaches and further research is needed to better understand impedance behavior. A better understanding of impedance is essential to a breakthrough in energy storage devices from capacitors and batteries, to electric generation and distribution of energy, to magnetic levitation, medical drugs and other energy improvements.

Schlüsselwörter

  • Impedance
  • Orbital Impedance Level
  • New Method or Direct Method of Studying Impedance
  • Supercapacitor
  • Nanofiber
  • Electrode
  • Graphene
  • Electrospinning
Uneingeschränkter Zugang

Effective Porosity Analysis in Low-Permeability Porous Media

Online veröffentlicht: 26 May 2020
Seitenbereich: 38 - 38

Zusammenfassung

Uneingeschränkter Zugang

Endocrine Disrupting Chemicals: Sources, Effects And Treatments

Online veröffentlicht: 26 May 2020
Seitenbereich: 39 - 47

Zusammenfassung

Abstract

Hormonal changes in humans and animals can be attributed to endocrine disrupting chemicals (EDCs). Studies have found that excessive exposure to natural and artificial environmental chemicals and toxins can have adverse effects on the endocrine system and reproductive health. The endocrine system creates and releases hormones that regulate the development of organs and how they function. Any disruption to hormones affects the development and functioning of the reproductive system, the brain and the neurological system. Research and reports on the subject have been published by international experts and organizations including the World Health Organization (WHO), United Nations Environment Programme (UNEP), International Labour Organization (ILO) and Endocrine Society. To fully comprehend the effect of EDCs on humans and wildlife, it is essential to understand epigenetics and its transgenerational effects on hormone development. Here, we extensively explore and review the research on the sources of EDCs, their effects and why exposure to EDCs is of concern, and treatments for EDC exposure.

Schlüsselwörter

  • EDCs
  • Hormones
  • Epigenetic
  • Receptors
5 Artikel
Uneingeschränkter Zugang

Effect of chemical preservatives on the shelf life of tomato juice

Online veröffentlicht: 26 May 2020
Seitenbereich: 1 - 13

Zusammenfassung

Abstract

This research conducted with the fully fresh, ripe and sound tomato (Lycopersicon esculentum Mill.) was collected then washed, peeled, seeds removed and transferred to the juice extractor. Sugar, preservatives were added to the extracted filtrated juice. Then the juice was heated, cooled and bottled for preservation. Tomato juice was prepared with three different treatments. Among the three treatments T1, T2 and T3 sample were prepared with no preservative, Na-benzoate preservative and potassium meta-bisulphite (KMS) preservative respectively. The organoleptic observation of this tomato juice was studied for 60 days storage period. Chemical analysis and sensory tests were carried out during the 30 days at an interval of 15 days to assess the effect of chemical additives on the shelf life of tomato juice. Negligible Change in chemical constituents except vitamin C was observed in the prepared juice throughout the 30 days storage period. Color was gradually faded and slightly off flavor develops at the end of the storage periods. The treatment T2 secured highest score for color, flavor, taste and overall acceptability and ranked as “Like very much” by a taste testing panel. Tomato juice prepared with no preservative (T1) spoiled after 45 days storage and juice prepared with KMS preservative (T3) spoiled after 60 days storage. Total number of viable bacteria was highest in tomato juice treated with no preservative (T1) and KMS preservative (T3). Tomato juice with Na-benzoate preservative (T2) contained least viable bacteria which was better than T1 and T3 sample. Considering all the parameters, Na-benzoate tends to be better additives than potassium meta-bisulphite (KMS) for preservation of tomato juice.

Schlüsselwörter

  • Tomato
  • Preservative
  • Sensory Analysis
  • KMS
  • Storage
Uneingeschränkter Zugang

Effect of Post-Harvest Dipping and Various Packaging Materials on Quality Traits of Mandarin (Citrus Reticulata Blanco.)

Online veröffentlicht: 26 May 2020
Seitenbereich: 14 - 20

Zusammenfassung

Abstract

An experiment was carried out to study the effect of post-harvest dipping and various packaging materials on quality traits of mandarin at the laboratory of Project Implementation Unit (Citrus zone) Udayapur, Katari from January to February 2019. The parameters observed were physiological loss in weight, juice content, titrable acidity, total soluble solids, TSS/TA ratio and shelf life. The packaging materials include individual newspaper wrapping, perforated polyethene and corrugated box. Gibberellic acid with a concentration of 100 ppm was used as a dipping material. The experiment was laid out in Completely Randomized Design (CRD) with 8 treatment replicated 3 times. The result showed that among eight treatments combination, fruits treated with GA3 in combination with perforated polyethene recorded minimum physiological loss in weight (1.99%) and control (19.08%). High retention of juice content (40.30%), total soluble solids(12.83 brix) and titrable acidity (0.60%) was recorded in fruits treated with GA3 in combination with perforated polyethene in 24 days of storage. Fruits treated with GA3 in combination with perforated polyethene attained shelf life of 48 days followed by perforated polyethene with a shelf life of 44 days. Finding of the experiment may prove to be helpful in rural area to store mandarin with minimum loss as markets are far from the village.

Schlüsselwörter

  • Citrus
  • gibberellic acid
  • combination
  • attributes
Uneingeschränkter Zugang

Varying Impedance “Orbital Impedance Stability“ Graphene Based Supercapacitor Nanofiber Electrodes – Utilizing A New Direct Method of Studying Impedance Based on Actual Experimental Data

Online veröffentlicht: 26 May 2020
Seitenbereich: 21 - 37

Zusammenfassung

Abstract

Single cell supercapacitors with electrodes of varying amounts of graphene and carbon black, formed via the electrospinning process with a carbon-based Polyacrylonitrile (PAN), were tested in 1M H2SO4. From the tested samples, the overall data indicates no correlation between impedance and capacitance energy values. However, the breakdown of the various samples showed mixed results of; good correlations between lower impedance resulting in higher and lower capacitance; while other samples showed higher impedance correlating to both higher and lower capacitance. No correlation was observed between the Impedance value and the thickness of the samples. Furthermore, carbon mole content was not a major factor in determining impedance; therefore, structure is not a major contributor to impedance. Whereas, carbon mole content is a major contributor to capacitance energy; Hence, impedance provides an alternative control point to increasing energy (2-10X times), that can be retrofitted to existing systems, or to increase the energy storage beyond current levels by adjusting/controlling impedance in new designs. The data is indicating impedance is not constant and is varying. The mechanism of varying impedance is unclear and requires further research. However, it is thought to mimic the energy level and stability of matter (atoms). Therefore, impedance varies or oscillates accordingly to achieve an impedance level stability, and hence the term “Orbital Impedance Stability”. Thoughts into Impedance being an Energy Field, to be provided in next publication (In-sha’-ALLAH). This research is concluding that our conventional understanding of impedance is limited in scope. New approaches and further research is needed to better understand impedance behavior. A better understanding of impedance is essential to a breakthrough in energy storage devices from capacitors and batteries, to electric generation and distribution of energy, to magnetic levitation, medical drugs and other energy improvements.

Schlüsselwörter

  • Impedance
  • Orbital Impedance Level
  • New Method or Direct Method of Studying Impedance
  • Supercapacitor
  • Nanofiber
  • Electrode
  • Graphene
  • Electrospinning
Uneingeschränkter Zugang

Effective Porosity Analysis in Low-Permeability Porous Media

Online veröffentlicht: 26 May 2020
Seitenbereich: 38 - 38

Zusammenfassung

Uneingeschränkter Zugang

Endocrine Disrupting Chemicals: Sources, Effects And Treatments

Online veröffentlicht: 26 May 2020
Seitenbereich: 39 - 47

Zusammenfassung

Abstract

Hormonal changes in humans and animals can be attributed to endocrine disrupting chemicals (EDCs). Studies have found that excessive exposure to natural and artificial environmental chemicals and toxins can have adverse effects on the endocrine system and reproductive health. The endocrine system creates and releases hormones that regulate the development of organs and how they function. Any disruption to hormones affects the development and functioning of the reproductive system, the brain and the neurological system. Research and reports on the subject have been published by international experts and organizations including the World Health Organization (WHO), United Nations Environment Programme (UNEP), International Labour Organization (ILO) and Endocrine Society. To fully comprehend the effect of EDCs on humans and wildlife, it is essential to understand epigenetics and its transgenerational effects on hormone development. Here, we extensively explore and review the research on the sources of EDCs, their effects and why exposure to EDCs is of concern, and treatments for EDC exposure.

Schlüsselwörter

  • EDCs
  • Hormones
  • Epigenetic
  • Receptors

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