Enhancing the fuel properties of beverage wastes as non-edible feedstock for biofuel production

A few industries, such as the beverage industry, have experienced some growth in sales during the COVID-19 pandemic. Globally, beverage companies alone generate over 200 million tonnes of biomass annually, which largely ends up as animal feed or in landfills. With the UK government's commitment to reduce its carbon footprint by at least 68% in 2030, many companies, especially small and medium enterprises (SMEs), are exploring options to reduce carbon emissions and develop roadmaps to become carbon neutral. It has thus become imperative for beverage companies to find value in or repurpose their waste. This paper unlocks the potential for improving the fuel properties of beverage waste through a blending process and explores the determination of optimal fractions for the blends via characterization. With an initial moisture content of 82 and 58 wt.% brewery spent grain (BSG) and spent coffee grounds (SCG), respectively, the pre-treatment process reduced moisture content by approximately 10-15 wt.%. The study concludes that biomass blending improved the fuel properties of the biomass, providing a competitive comparison with coal for energy applications.

Humanistic teaching during the pandemic: Education beyond the lesson

During the COVID-I9 crisis, teaching and learning activities were largely conducted online through open and distance learning (ODL). As a result, educators and students lacked the personal warmth and emotional support usually found in face-to-face classes, which affected the quality of the teaching and learning process. Therefore, what could educators do to facilitate the teaching and learning process during the pandemic? This chapter features narratives on humanistic practices in teaching that were carried out during the pandemic by five university lecturers. The narratives shed light on how they embedded humanistic elements in either one or several of these aspects of teaching: delivery, content, consultation, and assessment. Their pedagogical approaches indicate that education is not a rigid domain, but it can be extended beyond the four walls of the classroom and executed from the sincere heart. © 2023 by IGI Global. All rights reserved.

Bis(thio)carbohydrazone Luminogens with AIEE and ACQ Features and Their In Silico Investigations with SARS-CoV-2.

Herein, we report two novel multidentate luminogen proligands bis(3,5-diiodosalicylidene) carbohydrazone (H4L1) and bis(3,5-diiodosalicylidene) thiocarbohydrazone (H4L2), which are suitable candidates for biomedical applications. Though the thiocarbohydrazone H4L2 shows aggregation caused quenching (ACQ), the carbohydrazone H4L1 exhibits stronger fluorescence due to aggregation induced emission enhancement (AIEE). Molecular docking studies of H4L1 and H4L2 along with four similar (thio)carbohydrazones with the active sites of SARS-CoV-2 main protease 3CLpro reveals that the thiocarbohydrazones, in general, are showing better propensity compared to their oxygen analogues. Both the thiocarbohydrazones and the carbohydrazones, however, exhibit better binding potential at the active sites than that of some of the repurposed drugs such as chloroquine, hydroxychloroquine, lopinavir, ritonavir, darunavir and remdesivir. Also, the carbohydrazone H4L1 can be a better bioprobe compared to H4L2 as the former is found to have better binding potential with SARS-CoV-2 spike glycoprotein along with AIEE feature.

Bis(thio)carbohydrazone Luminogens with AIEE and ACQ Features and Their In Silico Investigations with SARS‐CoV‐2

Herein, we report two novel multidentate luminogen proligands bis(3,5‐diiodosalicylidene) carbohydrazone (H4L1) and bis(3,5‐diiodosalicylidene) thiocarbohydrazone (H4L2), which are suitable candidates for biomedical applications. Though the thiocarbohydrazone H4L2 shows aggregation caused quenching (ACQ), the carbohydrazone H4L1 exhibits stronger fluorescence due to aggregation induced emission enhancement (AIEE). Molecular docking studies of H4L1 and H4L2 along with four similar (thio)carbohydrazones with the active sites of SARS‐CoV‐2 main protease 3CLpro reveals that the thiocarbohydrazones, in general, are showing better propensity compared to their oxygen analogues. Both the thiocarbohydrazones and the carbohydrazones, however, exhibit better binding potential at the active sites than that of some of the repurposed drugs such as chloroquine, hydroxychloroquine, lopinavir, ritonavir, darunavir and remdesivir. Also, the carbohydrazone H4L1 can be a better bioprobe compared to H4L2 as the former is found to have better binding potential with SARS‐CoV‐2 spike glycoprotein along with AIEE feature. Two new bioactive (thio)carbohydrazone based luminogens showing AIEE and ACQ features and having better putative binding potentials with SARS‐CoV‐2 spike glycoprotein are reported as novel bioprobes. The study also suggests that the bisthiocarbohydrazones, in general, are showing better propensity towards main protease and could be considered as potential drug candidates.

The Role of Social Media Applications in Palm Oil Extension Services in Malaysia

The Malaysian palm oil industry faces many challenges, especially in agricultural technology at the plantation level because smallholders have trouble getting detailed information and the latest data on the palm oil industry issues. More efficient extension services are needed in meeting the need to increase knowledge. Information and Communication Technology (ICT) is the best method to accelerate agricultural technology transfer from research institutions to smallholders. Growing concerns about the impact of the covid-19 pandemic on health have prompted development agents to change the course and landscape of their delivery to social media application as a new norm socialisation agent. The study aims to examine the role of information and communication technology as a tool for developing new norms in conveying information and empowering smallholders' knowledge. This study uses a qualitative approach through content analysis on several reports from the Malaysian Palm Oil Board (MPOB), Department of Statistics Malaysia (DOSM) and the Malaysian Communications and Multimedia Commission (MCMC). The study found that the use of social media platforms among Malaysians is high, thus the level of application of technology and palm oil information needs to be improved through social media applications. The government needs to develop social media applications that are friendly, easily accessible and the information presented is easy to understand The implication of this study is that the use of information and communication technology will change the pattern of expansion of the palm oil sector in Malaysia in the future.

A novel manganese(II) bisthiocarbohydrazone complex: Crystal structures, Hirshfeld surface analysis, DFT and molecular docking study with SARS-CoV-2.

A novel Mn(II) complex [Mn(H2L)Cl2]•H2O (1) of a ditopic ligand 1,5-bis(2-benzoylpyridine) thiocarbohydrazone (H2L) was synthesized and characterised physico-chemically. A part of the mother solution of the complex 1 and THF yielded single crystals in a triclinic space group and are found same from the crystals obtained from another mixture of the mother solution and ethyl acetate. Single crystal XRD studies have confirmed the mononuclear complex formation and absence of any interactions between the Mn(II) centers. A solution of the complex 1 in chloroform, conversely, yielded a crystallographically different complex [Mn(H2L)Cl2]•CHCl3 (1a) in monoclinic and is also characterised with single crystal XRD. The ligand is coordinated through thione sulfur atom to form a square pyramidal geometry around Mn(II) center in both the complexes. The molecular packing of the complexes is found influenced by the nature of solvent inclusion, and are stabilized by different non-covalent interactions in the lattice. The intermolecular interactions are quantified by Hirshfeld surface analyses, which reveal that H•••Cl interactions has maximum contribution to the total Hirshfeld surface in the complex 1a. This is the first crystal structure study of a manganese(II) complex of a bisthiocarbohydrazone ligand. The molecular and electronic structures of the complexes are studied by DFT quantum chemical calculations. The band gap (Eg) of the complex 1 was estimated as 2.45 eV using Kubelka-Munk model and is in agreement with the electronic spectral calculations of the complex at TD-DFT level. Molecular docking studies of both the ligand and the complex reveal their greater propensity towards SARS-CoV-2 main protease compared to B-DNA dodecamer. Also, the binding potential of the ligand and the complex with SARS-CoV-2 main protease is found higher than that with chloroquine and hydroxychloroquine.

Enhancing the fuel properties of beverage wastes as non-edible feedstock for biofuel production

A few industries, such as the beverage industry, have experienced some growth in sales during the COVID-19 pandemic. Globally, beverage companies alone generate over 200 million tonnes of biomass annually, which largely ends up as animal feed or in landfills. With the UK government's commitment to reduce its carbon footprint by at least 68% in 2030, many companies, especially small and medium enterprises (SMEs), are exploring options to reduce carbon emissions and develop roadmaps to become carbon neutral. It has thus become imperative for beverage companies to find value in or repurpose their waste. This paper unlocks the potential for improving the fuel properties of beverage waste through a blending process and explores the determination of optimal fractions for the blends via characterization. With an initial moisture content of 82 and 58 wt.% brewery spent grain (BSG) and spent coffee grounds (SCG), respectively, the pre-treatment process reduced moisture content by approximately 10-15 wt.%. The study concludes that biomass blending improved the fuel properties of the biomass, providing a competitive comparison with coal for energy applications.