A Method for Identification of Exogenous Formaldehyde in Bombay Duck (Harpodon nehereus)

Yu, Shan; Wang, Wei Feng; Wu, Yan

doi:10.1007/s12161-015-0138-2

Cited by 8 publications

(7 citation statements)

References 36 publications

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“…Previous studies found that narrative‐based persuasive messages led to better memory (Kreuter et al, 2010; Mattila, 2000), fewer counterarguments (McQueen et al, 2011), more consistent beliefs (Appel & Richter, 2010; Mazor et al, 2007), and more affective responses (Kopfman et al, 1998). More recently, Shen et al (2015) conducted a meta‐analysis of 25 studies to investigate the impact of narratives on persuasion in health communication. The results revealed that narratives delivered via audio and video had a significant positive impact on attitudes, intentions, and behaviors.…”

Section: The Effects Of Transportation On Memory Attitudes and Behavioral Intentionmentioning

confidence: 99%

Strategic use of immersive media and narrative message in virtual marketing: Understanding the roles of telepresence and transportation

Chen

Yao

2021

Psychology and Marketing

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This study differentiates the roles of telepresence and transportation, the two widely cited processes underpinning an immersive media viewing experience, in the context of virtual marketing. In Study 1, college students viewed a real estate property tour in virtual reality (VR; high immersion) or as a 360° video (low immersion) in a research lab. The tour was accompanied by a voiceover presenting descriptive information about the apartment (descriptive evidence) or a narrative‐based introduction (narrative evidence). We found the enhanced telepresence under the VR viewing condition negatively impacted users' memory of the property; this effect was particularly pronounced with the narrative voiceover. Study 2 replicated key findings from Study 1 in an online experiment with a larger and more diverse sample. We also found that narrative‐induced transportation strengthened attitudinal outcomes, and enhanced telepresence boosted this effect. Our studies disentangle the impacts of VR‐induced telepresence on cognitive processing from the effects of narrative‐induced transportation on persuasive outcomes. The highly immersive media experience combined with deep transportation into the narrative can strengthen viewers' positive attitude towards the overall experience but hinder their ability to remember the details of the content. The findings point to a medium‐message matching strategy to achieve marketing goals.

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Section: The Effects Of Transportation On Memory Attitudes and Behavioral Intentionmentioning

confidence: 99%

Strategic use of immersive media and narrative message in virtual marketing: Understanding the roles of telepresence and transportation

Chen

Yao

2021

Psychology and Marketing

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“…The initial natural formaldehyde content in Bombay duck captured from the southeast coastal area of Bangladesh was reported to be 8.5 ppm [28], whereas Bombay duck captured from the southeast China shore was 28.72 mg/kg [29]. As shown in Figure 1, the formaldehyde content of Bombay duck increased significantly (p < 0.05) after one month of storage, reaching 17.3, before decreasing to 7.55 + 0.78 ppm after five months of storage.…”

Section: Figure 1 Changes Of Formaldehyde Content Of Bombay Duck Duri...mentioning

confidence: 99%

Bombay duck (Harpodon nehereus) natural formaldehyde levels and changes during frozen storage

Ariyani

Barokah²,

Wibowo

2023

IOP Conf. Ser.: Earth Environ. Sci.

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Demersal fish, including the Bombay duck (Harpodon nehereus), have relatively high levels of TMAO and hence have the potential for high natural formaldehyde content. This study aimed to determine the natural formaldehyde content of bombay duck and the pattern of the change during frozen storage. Approximately 15 kg bombay duck of 38 – 45g each caught by one-day fishing in Juwata Waters, Tarakan, North Kalimantan Indonesia, was transported in ice to the Laboratory of Marine Biotechnology, Research Center for Marine and Fisheries Product Processing and Biotechnology, Jakarta. Upon arrival, they were split into three groups as replicates and stored frozen for five months. Every month, the levels of formaldehyde, TVB, and sensory properties were monitored, and proximate analysis was performed before storage. The results showed that natural formaldehyde was detected in Bombay duck flesh before storage at a relatively high level of 12.58 + 0.35 ppm, increased to 17.3 ppm after one month of storage, and then decreased afterward. In contrast, TVB levels were low, 12.66 + 2, 54 mg N% before storage, then increased during storage. Based on sensory evaluation, all attributes of the bombay duck were deemed in good condition, with scores ranging from 7-8, except for the eyes, which received a score of less than 6.

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“…Fish is an important economic commodity both in domestic and international markets. However, Bombay duck is also reported to have high formaldehyde containing around 14 -140 mg/kg [10,11]. Furthermore, it can be difficult to identify and practice illegally added formaldehyde on Bombay duck during preservation.…”

Section: Introductionmentioning

confidence: 99%

Muscle tissue structural changes in bombay-duck (Harpodon nehereus) induced by formaldehyde solution during post-mortem storage

Barokah

Januar

Nurhayati

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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Formaldehyde is a harmful compound that is usually used as an illegal preservative agent in fisheries products to prevent spoilage and extend shelf life. In several fishery products, formaldehyde can be formed endogenously during the post mortem process through degradation of trimethylamine oxide (TMAO) by enzymatic process. Exogenous and endogenous formaldehyde can affect the textural and structural change in fish muscle tissue significantly influencing flesh quality. This study was aimed to characterize the structural change of the muscle tissue in Bombay duck (Harpodon nehereus) that is immersed with formaldehyde solution on chilling storage temperature. The Scanning Electron Microscope (SEM) analysis was used to identify and characterize the structural change in muscle tissue samples, which were immersed with formaldehyde solution 0%, 1%, 3%, and 5%. SEM analysis identified that in transversal section samples immersed with formaldehyde solution 0% (control) intermyofibrillar space was increased significantly during post mortem storage. This was in line with the increased of myofibril, connective tissue and sarcolemma lost on samples. Furthermore, on samples that were immersed with formaldehyde solution 1%,3%, and 5% the degradation of myofibril and intermyofibrillar was can be held and the connectivity tissue muscle still showed strong aggregation during post mortem storage.

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A Method for Identification of Exogenous Formaldehyde in Bombay Duck (Harpodon nehereus)

Cited by 8 publications

References 36 publications

Strategic use of immersive media and narrative message in virtual marketing: Understanding the roles of telepresence and transportation

Strategic use of immersive media and narrative message in virtual marketing: Understanding the roles of telepresence and transportation

Bombay duck (Harpodon nehereus) natural formaldehyde levels and changes during frozen storage

Muscle tissue structural changes in bombay-duck (Harpodon nehereus) induced by formaldehyde solution during post-mortem storage

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