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The good, old ‘whore’

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ROMA – Sure you get almost irritated at the mention of Tagetes minuta (lechuchutha), that invasive annoying plant.
It turns out the National University of Lesotho (NUL) is finding its use in detergents — to make a rival of pine gel!
Listen to the story of Thabiso Letseka and his work on Tagetes minuta guided by Dr Mosotho George.
Letseka has developed a pine gel-like product made from oil derived from lechuchutha, with a potential to replace the much-liked but expensive pine gel.
But a bit of history is in order.

The history of Tagetes minuta or lechuchutha in Lesotho is not a rosy one.
The legend goes that this plant was brought to Lesotho after 1914, before which time it was practically unknown.
It is known by many names in Lesotho, depending on which region of the country you live in.
They call it lechuchutha (a whore), monkhane and Jeremane (supposedly because it was brought by our forefathers who fought in Germany – (Jeremane) in the First World War.
The name lechuchutha is fitting.

The seeds of this plant are so good at sticking to human clothing and animals’ fur, the plant spreads itself all over the place pretty quick! “ke ke-ea-le-bafe.”
Add the fact that Basotho sparsely benefit from the plant, a weed that evades even the best of farmers, then you get why it is hated with a passion.
That is, until Letseka intervenes!
“It turns out the plant may be a blessing in disguise after all,” Letseka says.
“And the fact that it is so easy to grow makes it an ideal choice.”
So how did it catch his eye?

“I was once attached to a company called ChemCleaner, owned by Tšukulu Motsamai, a former NUL student who has formed his own detergents company in Leribe,” Letseka says.
In there, he noticed a problem.  Pine oils used to make pine gels are the most expensive components of the ingredients used.
The oils do not only have antimicrobial properties, they also give pine gels their gelatinous (mafatše thothomela) structure.
So what if the expensive pine oil is replaced with oil from locally available plants?
Would that not solve the problem of cost in the long run?

He collected three plants, algae (bolele), datura (letjoi) and lechuchutha and screened them.
They were screened for a number of volatile oils to see which of the three are as close in oil composition as pine oil.
“I used gas-chromatography mass-spectrophotometry to screen the volatiles,” Letseka said.

For instance, here is just a list of essential oils he identified in lechuchutha, don’t go away after reading them 🙂 limonene, ocimene, naphthalene, decahydro-2-methyl, 2-norpinalol,3,6,6-trimethyl, 2 butanone-4-95-methyl-2furanyl, cyclohexanone, (2-methylethynyl) trans and 3,7-epoxy-2-methylene-6-methyloct-en-1-al.
Don’t ask us what those things are! Or what they mean! Frankly speaking, we’ve got no clue!
But “one thing is for sure, the volatiles prove lechuchutha’s antimicrobial credentials,” Letseka says.

“We found that lechuchutha was the closest of the three plants to pine oil, so we selected it as a potential source of oil to replace pine oil in the production of gels,” he added.
“Of course datura was partly rejected for its toxicity.”
His next job was to extract the oils from lechuchutha.

Yes! Lechuchutha does have oil on its leaves, stems and seeds, but he concentrated on the leaves.
“So I used a process called steam distillation,” he mentioned a process that, despite is fancy name, is none other than “ho arubela” in Sesotho.
You see, Basotho used to put plants in hot water and then inhale the incoming steam — rich in “healing” volatiles.
“We use more or less the same old system that served Basotho so well for so long,” Letseka says.
“But in our case, the incoming steam, rich in volatiles, is condensed. The oily volatiles are then separated naturally from water,” following the famous phrase “oil and water don’t mix.”
“Ke metsi le oli”.

However, since there is much less oil compared to water, separation is not that easy.
So Letseka says he adds a chemical he calls diethyl ether.
“This I use to make a more efficient separation between oil and water.”
But don’t lose the bigger picture.

He is after lechuchutha oil, not diethyl ether.
So he has to remove diethyl ether from the oil.
After oil-water separation, he simply lets the highly volatile (e ea fofa) diethyl ether to evaporate leaving the oil behind (of course in industrial application, diethyl ether can be recycled).
The oil is used to make gel, not pine gel this time but lechuchutha gel.

This is made using a chemical he calls, Linear Alkyl Benzene Sulphonic Acid.
Used with lye (sodium hydroxide, to provide sodium ions), the chemical makes a perfect surfactant for detergents.
But to ensure he made the right material, he uses spectroflourophotometer (an instrument that measures light interactions with matter) to determine Critical Micelle Concentration.
“Despite the ongoing characterisation work, so far, I can conclude that my detergents are as good as pine oil based ones,” Letseka, the NUL chemicals maharishi says.

Own Correspondent

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LEC to switch off households over debts

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MASERU – The Lesotho Electricity Company (LEC) will from Tuesday next week begin switching off clients who owe it money.

The LEC issued a seven-day ultimatum to all customers who owe it on Tuesday last week. The deadline ends on Monday.

It is expected that the LEC will begin switching off households that have defaulted.

The state-owned power company, however, is not going to touch any government department or business entities that owe it on grounds that they are in payment negotiations.

The LEC move comes barely two weeks after it cut electricity supplies to the Water and Sewerage Company (WASCO) thus causing it to fail to pump water to communities countrywide for more than two days.

The LEC says it is owed close to M200 million by government departments, businesses and individuals.

The LEC spokesman, Tšepang Ledia, told thepost that the government and the businesses will not have their electricity cut because they are in negotiations.

“We are in negotiations with the government and businesses and hopefully they will pay,” Ledia said.

“We advise the ordinary people to pay their debts before the 20th of March 2023 or else we cut the services,” he said.

The LEC says it is running short of funds for its daily operations.

In December last year the company increased power tariffs by 7.9 percent on both energy and maximum demand charges across all customer categories for the Financial Year 2022/23.

Last week the LEC boss, Mohato Seleke, said postpaid consumers and sundry debtors owe the company M169.4 million.

He said unless the debtors pay he will be unable to buy electricity from ’Muela Hydropower Project, Eskom in South Africa and Mozambique’s EDM.

This, he said, could cause serious load shedding in the country and could be devastating for businesses.

Seleke said the LEC spends M630 million monthly to buy electricity.

“If postpaid consumers do not settle their debts this could prevent the LEC from being able to buy electricity which can lead the country to encounter load-shedding,” Seleke said.

Seleke said collecting debt from government department ministries was a challenge as there is an understanding that since LEC is a state-owned company, it will continue supplying government agencies with electricity and they will settle their bills when they have funds to do so.

Seleke said the LEC has lost M21 million to vandalism during this financial year.

Relebohile Tšepe

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Bumper payout for former mineworkers

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MASERU – AT least 11 316 current as well as former mine workers are set for a bumper payout after Tshiamiso Trust began disbursing the first billion Maloti to workers who are suffering from silicosis and tuberculosis.

The payment comes two years after Tshiamiso Trust began processing claims for the historical M5 billion settlement agreement between mineworkers and six gold mines in South Africa.

Speaking at the payment announcement in Maseru last week, the Trust’s CEO, Lusanda Jiya, said it has been two years since they officially began accepting claims.

“Our people come to work every day with the mission of impacting lives for the better, and the first billion rand paid out to over 11 000 families is just the beginning,” Jiya said.

“We know that there is no compensation that will ever be enough to undo the suffering endured by mine workers and their families,” he said.

“However, we are committed to deliver our mandate and ensure that every family that is eligible for compensation receives it.”

Jiya said the Trust is limited both in terms of the time in which they can operate, and the extent to which they can assist those seeking compensation.

Broadly speaking, the eligibility criteria include among others that the mineworker must have worked at one of the qualifying gold mines between March 12, 1965 and December 10, 2019.

Secondly, living mineworkers must have permanent lung damage from silicosis or TB and deceased mine workers representatives must have evidence that proves that they (the deceased) died from TB or Silicosis.

Tshiamiso Trust has a lifespan of 12 years, ending in February 2031.

Over 111 000 claims have been received to date, through offices in South Africa, Lesotho, Botswana, eSwatini, and Mozambique.

The Trust is working with stakeholders in these countries and others to mobilise its efforts and expand operations.

The history of silicosis in South Africa goes back to the late 1880’s when the first gold mines began operations.

The gold was stored and locked in quartz, a special rock that contains large amounts of silica.

Crystallised silica particles can cause serious respiratory damage if inhaled.

In the earlier days of gold mining, dust control, health and safety standards and the use of PPE (personal protective equipment) were not as advanced as they are today.

Tshiamiso Trust was established in 2020 to give effect to the settlement agreement reached between six mining companies.

The companies are African Rainbow Minerals, Anglo American South Africa, AngloGold Ashanti, Harmony Gold, Sibanye Stillwater and Gold Fields.

The settlement agreement was reached and made after a ruling by the Johannesburg High Court as a result of a historic class action by former and current mineworkers against the six gold mines.

Justice for Miners is a coalition of interested parties in the mining sector launched at the Nelson Mandela Foundation in Johannesburg in 2020.

The Johannesburg High Court approved the setting up of the Tshiamiso Trust to facilitate payment by the companies to affected miners.

Keith Chapatarongo

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Farmers cry over cost of livestock feed

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MASERU – Lehlohonolo Mokhethi is a farmer who has been running a successful poultry business, thanks to a small loan he got from a local bank.

He now has 300 chickens.

He says his vision is to rear 5 000 chickens by 2025 and employ 30 youths. But he is now grappling with a new challenge: the ever increasing cost of chicken feed.

That is threatening the viability of his business.

“The biggest challenge is that food prices increase every day, feeding is expensive,” Mokhethi said.

“It is quite difficult to make profit in business if each and every day food prices increase. Today I am buying a bag of food with a certain amount then the next day the price has increased,” he says.

“Our customers fail dismally to understand that food has increased and the Chinese are taking our market because they sell at a low price thus I run at a loss.”

Last week, a top attorney in Maseru who is also a prominent farmer, Tiisetso Sello-Mafatle, called a meeting for farmers to discuss these challenges.

She says the government must regulate the prices of livestock feed.

That is critical if the farming business is to succeed, she says.

Attorney Sello-Mafatle says farmers must come up with a structure for livestock feed prices which they would present to the government for gazetting.

“We should state our regulations and give them to the government to make everything easy for both parties because we cannot wait for the government to make regulations for us,” Sello-Mafatle says.

She adds that “farmers should be bullish about what they want and never have fear endorsing new things”.

“I will not be challenged or cry (because of) what life throws at me but I will cry when things are not happening the right way,” she says.

Mafatle says farmers need to know who they are and know the capabilities they have.

“This will help a farmer in becoming the best in any field they are in once they are confident about themselves,” she says.

Karabo Lijo, another participant, said they have to influence the cost of inputs in agriculture, especially livestock feed.

“We have to go back to cost-price analysis where as farmers we are able to derive the selling price and the break-even point in our production,” Lijo said.

“We can also derive the stable or constant mark-ups on our products,” he said.

“We need to do research to increase the ability to produce byproducts which are likely to have the longest shelve life,” he said.

The meeting urged farmers to diversify their products by introducing such things as mushroom farming. They said mushrooms can grow very well in Lesotho due to its favourable climate.

The farmers also demanded that there should be regulations on how land can be sold or borrowed in Lesotho.

Tholoana Lesenya and Alice Samuel

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