Pharmaceutical Microbiology Resources. Edited by Professor Tim Sandle (established 2009)
The 100th edition of the Pharmaceutical Microbiology society's newsletter has been published. The edition includes cutting edge news, a regulatory round-up and a retrospective looking at the past 100 issues.
Copies have been made available to members or the latest edition can be purchased from the Pharmig website: https://www.pharmig.org.uk/en/
Posted by Dr. Tim Sandle, Pharmaceutical Microbiology Resources (http://www.pharmamicroresources.com/)
Beneath the ocean’s surface, bacteria have evolved specialized enzymes that can digest PET plastic, the material used in bottles and clothes. Researchers at KAUST discovered that a unique molecular signature distinguishes enzymes capable of efficiently breaking down plastic. Found in nearly 80% of ocean samples, these PETase variants show nature’s growing adaptation to human pollution.
A large-scale global study by scientists at KAUST (King Abdullah University of Science and Technology) revealed that these marine microbes are widespread and genetically prepared to consume polyethylene terephthalate (PET) -- the tough plastic used in everyday items like drink bottles and fabrics. Their remarkable ability stems from a distinct structural feature on a plastic-degrading enzyme called PETase. This feature, known as the M5 motif, acts as a molecular signature that signals when an enzyme can truly break down PET.
For decades, scientists believed PET was almost impossible to degrade naturally. That belief began to shift in 2016, when a bacterium discovered in a Japanese recycling plant was found to survive by consuming plastic waste. It had developed a PETase enzyme capable of dismantling plastic polymers into their building blocks.
Yet it remained unclear whether oceanic microbes had developed similar enzymes independently.
Using a combination of artificial intelligence modeling, genetic screening, and laboratory testing, Duarte and his team confirmed that the M5 motif distinguishes true PET-degrading enzymes from inactive look-alikes. In experiments, marine bacteria carrying the complete M5 motif efficiently broke down PET samples. Genetic activity maps showed that M5-PETase genes are highly active throughout the oceans, especially in areas heavily polluted with plastic.
To understand how widespread these enzymes are, the researchers examined more than 400 ocean samples collected from across the globe. Functional PETases containing the M5 motif appeared in nearly 80 percent of the tested waters, ranging from surface gyres filled with floating debris to nutrient-poor depths nearly two kilometers below.
In the deep sea, this ability may give microbes an important edge. The ability to snack on synthetic carbon may confer a crucial survival advantage, noted Intikhab Alam, a senior bioinformatics researcher and co-leader of the study.
The discovery highlights a growing evolutionary response: microorganisms are adapting to human pollution on a planetary scale.
Although this adaptation reveals nature's resilience, Duarte cautions against optimism. "By the time plastics reach the deep sea, the risks to marine life and human consumers have already been inflicted," he warns. The microbial breakdown process is far too slow to offset the massive flow of plastic waste entering the oceans each year.
On land, however, the findings could accelerate progress toward sustainable recycling.
The identification of the M5 motif offers a roadmap for engineering faster, more effective enzymes. It reveals the structural traits that work under real environmental conditions rather than just in test tubes. If scientists can replicate and enhance these natural mechanisms, humanity's battle against plastic pollution may find powerful new allies in one of the planet's most unexpected places: the deep ocean.
See: Intikhab Alam, Ramona Marasco, Afaque A Momin et al. Widespread distribution of bacteria containing PETases with a functional motif across global oceans. The ISME Journal, 2025; 19 (1) DOI: 10.1093/ismejo/wraf121
Posted by Dr. Tim Sandle, Pharmaceutical Microbiology Resources (http://www.pharmamicroresources.com/)
The global pharmaceutical packaging market is on a trajectory of remarkable expansion, projected to grow from USD 128.7 billion in 2025 to USD 299.1 billion by 2035, reflecting an absolute increase of USD 169.6 billion, according to a new forecast by Future Market Insights (FMI).
This robust growth, translating to a total increase of 131.8% over the forecast period, underscores the escalating demand for advanced drug delivery systems, biologics and biosimilars adoption, and enhanced patient safety across prescription, over-the-counter, and specialty pharmaceutical products.
The pharmaceutical packaging market is predominantly driven by primary packaging, which accounts for an estimated 67.5% market share in 2025. Primary packaging remains the first line of defense in maintaining medication integrity, offering proven barrier properties, patient safety features, and compliance with regulatory standards. Pharmaceutical manufacturers continue to invest in material innovation, tamper-evident systems, and serialization technologies to enhance product differentiation while addressing patient adherence and drug stability concerns.
By drug form, solid dosage packaging holds a dominant position, representing 45.2% of the market in 2025. This segment benefits from established manufacturing patterns, strong market acceptance, and proven shelf-life performance. Advancements in moisture barrier technologies, user-friendly dosing systems, and regulatory compliance frameworks further reinforce solid dosage packaging as a key growth driver.
Several factors are driving the pharmaceutical packaging market:
The pharmaceutical packaging market is highly competitive, featuring leading global players such as Amcor plc, Gerresheimer AG, West Pharmaceutical Services Inc., Schott AG, and AptarGroup Inc. Companies are strategically investing in barrier technologies, advanced material systems, product innovation, and smart packaging capabilities.
These insights are based on a report on Pharmaceutical Packaging Market by FMI.
Note: We would be also interested in sharing an exclusive guest article based on our research findings.
Pharmaceutical Microbiology Resources (http://www.pharmamicroresources.com/)
Researchers have developed a light-emitting sugar probe that exposes how marine microbes break down complex carbohydrates. The innovative fluorescent tool allows scientists to visualize when and where sugars are degraded in the ocean. This breakthrough helps map microbial activity and carbon cycling, providing new clues about how the ocean stores and releases carbon.
Sugars and the Ocean's Carbon
Algae take in carbon dioxide and transform it into oxygen and organic matter, with sugars playing a central role in the process. Yet not every sugar is easy for microbes to digest. Some are so complex that only a few microorganisms can break them down. When these tough sugars resist decay, the carbon they contain sinks to the seafloor, where it can remain trapped for centuries until the right enzymes appear. Determining which microbes can digest specific sugars has long challenged scientists, especially in diverse ocean ecosystems.
Watching Sugars Glow
To overcome this problem, the team used automated glycan assembly to create a sugar tagged with two fluorescent dyes. These dyes interact through a process called Förster resonance energy transfer (FRET), acting together like a molecular switch. The probe stays dark when intact, but once an enzyme breaks the sugar's backbone, it emits light. This allows scientists to see exactly where and when the sugar is being degraded. The researchers tested the probe by tracking α-mannan turnover, a polysaccharide (long sugar chain) found in algal blooms. It performed effectively in purified enzyme tests, bacterial extracts, live cell cultures, and even complex microbial communities.
Revealing Hidden Degraders
By enabling the tracking of α-mannan turnover, this glycan probe opens up new avenues for studying microbial metabolism without the need for prior genomic knowledge. Researchers can now pinpoint active degraders in situ, map the progression of glycan breakdown through space and time, and quantify turnover rates in complex communities. This tool paves the way for deeper insights into glycan cycling across ecosystems, from ocean algal blooms to the human gut. By observing which microbes are activated and under what conditions, scientists can link specific enzymatic activities to environmental processes and ultimately gain a better understanding of carbon flux in the ocean.
See:
Conor J. Crawford, Greta Reintjes, Vipul Solanki, Manuel G. Ricardo, Jens Harder, Rudolf Amann, Jan-Hendrik Hehemann, Peter H. Seeberger. Activity-Based Tracking of Glycan Turnover in Microbiomes. Journal of the American Chemical Society, 2025; 147 (29): 25799 DOI: 10.1021/jacs.5c07546
Posted by Dr. Tim Sandle, Pharmaceutical Microbiology Resources (http://www.pharmamicroresources.com/)
Cacao ceremonies have grown in popularity around the world as a gentle yet powerful way to support emotional healing. Rooted in ancient Mesoamerican culture, these gatherings use ceremonial-grade cacao to open the heart, calm the mind, and deepen emotional connection. Unlike recreational or ritualistic drug use, cacao is a legal, natural plant medicine known for its grounding and heart-centered energy.
For people in recovery or those working through emotional pain, cacao offers a safe space to feel, reflect, and release.
What Is a Cacao Ceremony?
A cacao ceremony is a guided group or solo experience where participants drink a warm beverage made from raw, organic cacao beans. Unlike commercial chocolate, ceremonial cacao is minimally processed and contains no added sugar. It’s rich in theobromine—a natural compound that gently stimulates the body—and magnesium, which supports relaxation.
Cacao ceremonies often include elements like meditation, breathwork, music, journaling, or sharing circles. The goal is to create a space where people can connect with their emotions, their inner wisdom, and others around them.
The Science Behind Cacao’s Emotional Support
Cacao is not just symbolic—it’s biologically active. Here’s how it supports emotional wellness:
Cacao stimulates the release of dopamine, serotonin, and endorphins—neurotransmitters linked to happiness and emotional regulation. According to a 2020 study published in Nutrients, polyphenols found in cacao have a positive effect on mood and cognitive function [1].
Cacao is one of the richest natural sources of magnesium, a mineral known to relax muscles and calm the nervous system. Magnesium deficiency is linked to anxiety and depression, so cacao can offer gentle support for emotional balance.
Cacao contains anandamide, known as the “bliss molecule.” This neurotransmitter affects the same brain receptors as THC (the active compound in cannabis) but without any psychoactive effects. It enhances feelings of peace and connection.
How Cacao Ceremonies Help Release Emotions
In our daily lives, we often suppress feelings to “keep going.” Cacao ceremonies invite us to slow down and allow emotions to rise without judgment. Whether you’re grieving, anxious, or overwhelmed, cacao helps create emotional spaciousness.
The gentle energy of cacao helps people speak more openly and honestly. Sharing circles during ceremonies can help participants express feelings they’ve held in for too long. For those afraid to be vulnerable, cacao often provides courage through comfort.
Emotions live in the body. Cacao, paired with movement or breathwork, helps us reconnect with physical sensations. This connection can support the release of emotional blocks that live beneath the surface.
Many ceremonies include guided journaling or visualization exercises. This inward focus helps people explore hidden emotional wounds, patterns, or stories. Often, clarity and healing follow the act of reflection.
Who Can Benefit?
Cacao ceremonies can support anyone looking to:
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Process grief or trauma
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Let go of emotional baggage
●
Deepen mindfulness or meditation
practices
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Reconnect with self after
addiction or major life changes
●
Strengthen relationships through
shared emotional space
People in recovery, especially during the early stages, may find cacao a gentle companion in their journey. Its heart-opening quality helps soothe emotional wounds that surface after detox or therapy.
If you’re curious about cacao but don’t know where to start, here’s a simple, safe solo ritual:
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1.5 oz (about 42 grams)
ceremonial-grade cacao
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1 cup hot water or plant-based
milk
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A quiet space with a candle or
soft music
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A journal or notebook
This simple practice can offer surprising emotional clarity and calm.
While cacao is safe for most people, it's important to keep the following in mind:
●
Start with a small amount if you're new to
cacao or sensitive to stimulants.
●
Avoid mixing with antidepressants (MAOIs or SSRIs) without medical advice.
●
Stay hydrated, as cacao can be slightly
dehydrating.
●
Pregnant or nursing? Talk to a healthcare
provider before using ceremonial cacao regularly.
Final Thoughts
Cacao ceremonies are more than just a trend. They are a return to ancient wisdom—an invitation to slow down, connect, and heal. In a world that often rushes through emotion, cacao asks us to pause and feel. Whether you join a group or start with a solo ritual, cacao can be a beautiful ally in your journey to emotional freedom.
As you sip, listen. Your heart might be ready to speak.
References
[1] Socci, V., Tempesta, D., Desideri, G., De Gennaro, L., & Ferrara, M. (2017). Enhancing Human Cognition with Cocoa Flavonoids. Frontiers in Nutrition, 4, 19. https://doi.org/10.3389/fnut.2017.00019
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