Assessment of microwave sterilization of foods using intrinsic chemical markers.

J Microw Power Electromagn Energy

Department of Food Science and Technology, Chapman University, Orange, CA 92840, USA.

Published: July 1997

The uniformity of microwave processing was investigated by measuring the formation of intrinsic chemical markers in disc-shaped and cylindrically-shaped whey protein gel model systems. These markers are formed as a result of thermally induced reactions of sugar and protein precursors. They were measured in samples placed in a pressurizable Teflon vessel and microwave heated to different peak temperatures using different power levels. Heating uniformity was mapped by sectioning the sample and analyzing for markers. The destruction of B. stearothermophilus spores in alginate beads was correlated with marker formation. The results show that the markers can be used to assess sterility and spatial time-temperature distributions in solid food samples.

Download full-text PDF

Source
http://dx.doi.org/10.1080/08327823.1997.11688323DOI Listing

Publication Analysis

Top Keywords

intrinsic chemical
8
chemical markers
8
markers
5
assessment microwave
4
microwave sterilization
4
sterilization foods
4
foods intrinsic
4
markers uniformity
4
uniformity microwave
4
microwave processing
4

Similar Publications

Flavonoids, a group of natural pigments, have attracted notable attention for their intrinsic fluorescent bioactive properties and potential therapeutic implications. Recent studies have suggested that the photoexcitation of specific flavonoids can also lead to the formation of triplet states, thereby potentially enhancing their applications in photoactivated antioxidant mechanisms. However, the crucial mechanism details about triplet state formation are still poorly understood.

View Article and Find Full Text PDF

Effect of Fabricating Process on the Performance of Two-Dimensional p-Type WSe Field Effect Transistors.

Nano Lett

January 2025

Hunan Provincial Key Laboratory of Two-Dimensional Materials, State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China.

Two-dimensional (2D) transition metal dichalcogenides (TMDs), such as WSe, are promising candidates for next-generation integrated circuits. However, the dependence of intrinsic properties of TMD devices on various processing steps remains largely unexplored. Here, using pristine p-type WSe devices as references, we comprehensively studied the influence of each step in traditional nanofabrication methods on device performance.

View Article and Find Full Text PDF

Chitosan and hyaluronic acid in breast cancer treatment: Anticancer efficacy and nanoparticle and hydrogel development.

Int J Biol Macromol

January 2025

Department of Breast Surgery, The Cancer Hospital of China Medical University, China; Department of Breast Surgery, The Cancer Hospital of China Medical University Liaoning Cancer Hospital & Institute, China. Electronic address:

The pervasive global health concern of breast cancer necessitates the development of innovative therapeutic interventions to enhance efficacy and mitigate adverse effects. Chitosan and hyaluronic acid, recognized for their biocompatibility and biodegradability, present compelling options for novel drug delivery systems and therapeutic platforms in the context of breast cancer management. This discourse will delineate the distinctive attributes of chitosan and hyaluronic acid, encompassing their inherent anticancer properties, targeting capabilities, and suitability for chemical modifications.

View Article and Find Full Text PDF

Surface receptor-targeted Protein-based nanocarriers for drug delivery: Advances in cancer therapy.

Nanotechnology

January 2025

Department of Biotechnology, Kalasalingam Academy of Research and Education (Deemed to be University), Anand Nagar, School of Bio, Chemical & Process Enginneering, Krishnankoil, Krishnan Kovil, Tamil Nadu, 626126, INDIA.

Significant progress has been made in cancer therapy with protein-based nanocarriers targeted directly to surface receptors for drug delivery. The nanocarriers are a potentially effective solution for the potential drawbacks of traditional chemotherapy, such as lack of specificity, side effects, and development resistance. Peptides as nanocarriers have been designed based on their biocompatible, biodegradable, and versatile functions to deliver therapeutic agents into cancer cells, reduce systemic toxicity, and maximize therapy efficacy through utilizing targeted ligands such as antibodies, amino acids, vitamins, and other small molecules onto protein-based nanocarriers and thus ensuring that drugs selectively accumulate in the cancer cells instead of healthy organs/drug release at a target site without effects on normal cells, which inherently caused less systemic toxicity/off-target effect.

View Article and Find Full Text PDF

Superhydrophobic and Self-Healing Porous Organic Macrocycle Crystals for Methane Purification under Humid Conditions.

J Am Chem Soc

January 2025

Stoddart Institute of Molecular Science, Department of Chemistry, Zhejiang University, Hangzhou 310058, P. R. China.

Purifying methane from natural gas using adsorbents not only requires the adsorbents to possess excellent separation performance but also to overcome additional daunting challenges such as humidity interference and durability requirements for sustainable use. Herein, porous organic crystals of a new macrocycle () with superhydrophobic and self-healing features are prepared and employed for the purification of methane (>99.99% purity) from ternary methane/ethane/propane mixtures under 97% relative humidity.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!