SAO PAULO, Jan 29 (Reuters) -

A cargo of Louis Dreyfus Company soymeal destined for export

from the southern Brazilian port of Paranagua was returned for

reprocessing at one of the company's local plants, the grain

processor told Reuters on Wednesday.

LDC declined to provide details such as the timeline of the

refusal, size of cargo and destination, or the nature of the

issue with the cargo.

However, a person with knowledge of the matter said LDC's

soymeal was sent by trucks to the port but subsequently rejected

last week for containing impurities.

Brazil's ability to track agricultural commodities cargoes

has come under heightened scrutiny after China suspended five

local soybean exporters, citing product non-conformities earlier

this month.

"The Louis Dreyfus Company clarifies that, with regard to

the aforementioned cargo, given the absence of any type of

adulteration or harmful agents, it carried out the procedure

established in current legislation, returning the cargo for

reprocessing," the company said in a statement.

The port authority did not have an immediate comment on

LDC's soymeal.

The refusal of LDC's soymeal came after authorities at the

port of Paranagua said on Tuesday 51 truck-loads carrying 2,200

tons of soymeal were turned down for "product adulteration",

without naming the companies involved.

LDC said none of its soy processing plants in the states of

Parana, Mato Grosso and Goias had sent allegedly contaminated

soymeal products to Paranagua.

The source said the soymeal cargo's origin was LDC's factory

in Ponta Grossa in the state of Parana.